The truth about the "Double Hump" heads.

A few points to consider if your planning on using a pair of double hump GM heads.

[@raythomasson8660]

I didn't know Kris Kristoferson built Chevy motors!

[@eliascorteslopez1094]

He's the guy that built engines for Blade in the blade movie lol

[@coreybutler4002]

More like Sam Elliott! Lol

[@raythomasson8660]

Ikr Corey

[@ilovelulu8492]

@@coreybutler4002 that's what I was thinking

[@joshcampbell2503]

This cracked me up 🤣

[@gszytk2571]

Great narration...only thing missing is the hiss when the cig butt gets flicked into the tray of parts cleaning gas.....

[@warwickdrenth8970]

What an awesome narrator! An honest view that ecos the enigma of these heads that made hot rodders think and look twice. This is like listening Orsen wells ! The background music is awesome, a perfect fit . I hope he does a narration on the Ford 351 4V

[@VATION3RD]

Yep sound like Sam Elliott with a buzz

[@VATION3RD]

Trick flow now has double hump heads in aluminum for that Nostalgia old school look but with all the Trick Flow magic fir those 600 lift cams for around $1200 a set...

[@VATION3RD]

I've got the 1969 double hump heads with accessory bolt holes on a 383 sitting in my 72 Nova for the old school nostalgia look even with the Victor scorpion intake

[@BareRoseGarage]

Very true man. These things had their place, but like you said time has marched on. I have a couple of them, and people still want them, but its easier on the wallet to sell them to buy the ones I want.

[@thereluctantgearhead4544]

Yep, like everything else, they done got expensive. I have a few pairs I've been holding on to for decades.

[@mermaiddreams83]

Have a nice pair of the same casting 68 double humps myself and have turned down more money for them than they are probably worth, but growing up I always wanted a 400sbc with a pair of the old double hump head and after getting it together with a stock bottom end 400 block was amazed at the power they produced in my 83 S-10 !!! Old school is definitely still the true cool in my opinion!!!!

[@donfield1837]

Spooky twighlight nattative on the ole double humper excellent job

[@awfulcoffelsonecargarage8215]

You crack me up man about the old double humps

[@adamformanack318]

291 have more nickel in them when they pored them they are heavy an hard to port

[@thereluctantgearhead4544]

Definitely a chunk of iron. I ported alot of iron heads back in the day, shit takes forever.

[@doublek5583]

Couldn't agree with ya more on money spent on double humps,, although I have found most aftermarket heads arenot ready to go out off the box, they require some work just to make them right, as long as I have double humps on the shelf, I will use them, I have a set of 186's which I'm getting ready to use, which I'm making the car correct on numbers matching

[@danasmith1899]

Back in the day we threw a motor away if it was going to cost $500 to rebuild, and you never put stupid money in the heads that's why if you had 202's you put them on, amazing to see people spend 3 to $5,000 for their motors nowadays

[@frankammirati3385]

V8s are becoming exotic , manufacturers have literally told the general public this , you want a car with a V8 now a days you have to be well to do and are now in the exotic car market .

[@kenmoule825]

3-5000k is a short block now. No heads, no nothing up top. Some crate engines are well over 10K now. Better go check your numbers again.

[@thereluctantgearhead4544]

Unfortunately the shits gone way up. Typical high performance built SBCs for me these days is $5000 to $8000 grand for parts & machine work. Bigblock Chevys are $8000 to $12,000 grand. And those prices ain't bad for today's economy. Olds, Buick, & Pontiac cost even more for a real powerful build. Pontiacs are what I started with, but I can't afford them hardly anymore. I miss the good ole days.

[@thereluctantgearhead4544]

I'm building 3 bigblock Chevys now, I'll have around $30,000 in the 3 of them. But they will all be 700+ to 800+ NA HP each. I can still build a 300hp 350 for less than 2 grand tho. Probably could build a 400hp 350 with a Vortec longblock for 2 grand. Basic 350 SBCs are still the cheapest engine to build by far and they do respond to modifications better than most.

[@codyjohnson5674]

​@@kenmoule825lmao. Long blocks for sale everywhere for 250-500 ALL DAY.

[@1967brokedude]

Vortecs = cracks. I got 3 sets of cammels ,Never gonna sell .

[@leroyll1144]

had a 65 327 out of a burnt down vette,i think it was rated 375 hp ,had 202 fi heads solid lift cam with 11 something compression.sinlge quad offy/tunnel ram 800 cfm holley,hooker headers ,mallory dual point distr.and some other goodies.put it in my 64 nova ss,with 411 gears and amuncie 254 low 4 spd.turned low 11s in the quarter mile in 1978,loved that car.called it the rat killer!!

[@thereluctantgearhead4544]

I have a 66 L-79 350hp 327 stashed away now. Had one I built back in the day with a tunnelram and a huge solid roller, had it in a 69 C-10 stepside. Engine came from a totalled 66 Chevy 2 SS. I bought the whole wrecked car for $150 bucks. Also had a M-21 4spd and 4-11 12-bolt posi. Body was wasted, got wrapped around a telephone pole back in the late 60s. Car sat in the woods for 20+yrs till I dragged it out. Hell of a deal.

[@thereluctantgearhead4544]

I used the old Holley Pro Dominator tunnelram with 660s on my L-79. Wish I still had it.

[@leroyll1144]

@@thereluctantgearhead4544 those were the days when you could buy tri5s for a$150,other cars ,& trucks dirt cheap all sorts of flavors.brings back alot of memories of So California in the 70-80 s.

[@thereluctantgearhead4544]

@@leroyll1144 Yep, definitely a simpler time to be alive.

[@williepelzer384]

Those times sound alittel fast for the combination of parts you discribed???

[@The_Backyard_garage]

Best heads on the market

[@confuse3671]

Heh, to get them "stock eliminator" ready - your looking at $5000+

[@thereluctantgearhead4544]

@@confuse3671 Yep, at least. Plus ya might need to buy 10 pairs of them to find the best 2. Shits turned into a rich man's game.

[@Jeffreycarr-t7g]

Fuck that lol those are 365hp heads right out the factory with a dremmel and a 15 hrs into each head plus sealed power head set w stock springs you could make over 400 net

[@thereluctantgearhead4544]

They definitely have potential. Just look at what the NHRA Superstock 327s are making and running with them. Bad motherfuckers for sure.

[@robertheymann5906]

Video was a total time warp..... "Ya, way back when carburetors roamed the earth....."

[@donmilani129]

It’s not worth the investment when an off the shelf aluminum heads will destroy the old camel heads. They’re good for a restoration project and cool factor !

[@thereluctantgearhead4544]

Yep, a person can spend a shitload of money on them old heads. Better to just buy new aftermarket these days.

[@edpetrocelli2633]

If you aren`t looking for numbers matching parts don`t bother looking at them. Vortec heads make 340 HP @ 5400 rpm with a dished piston on pump gas. (602 crate motor) The humps were the best of their day and it has passed.

[@hendo337]

Exactly you can make 400hp easy with Vortecs that have only had spring clearancing and screw in studs on a 355 with flat tops, modern roller cam, good intake and carb. If you work the ports and mill them for more compression and run more ci 450+hp isn't going to be too hard. Of course even cheap Aluminum 23° heads out of the box with 355+ci and the right supporting mods will make 500 pretty easy anymore.

[@jeffeaton5221]

They bring good money to the right person looking to restore back matching dates

[@haroldhprittjr7007]

Yeah it’s the holy grail when it comes to building old skool horse power I grew up building motors in the 90’s an my whole life that’s all I ever herd was “double hump 2.02 with angle plugs! That was the top shelf heads with 2.02 intake valves an the plug angled to the exhaust valve for the dome piston engines . Then you hear of the legend “SmokeyYunick” to find out he worked with GM on a lot of motors and a bunch of heads ! He said they even sent him heads that were like a “Hemi” head. He told them there was nothing wrong with the head they had. To make casting changes for what is was worth would not be good . On there pocket book or r&d time that had already done on these heads they already had. I hear or the famous “302” motor alot of people don’t know yeah Chevy had a 302 . The first time is was built an ran was 1965 Daytona Smokey Yunick” built one an won that race feb 65 ! The previous year at that same track the 426 Hemi won 1,2,3,5 place . So in turn the facts from then state the small block Chevy with double humped heads could technically beat a 426 Hemi . The basic design used by all NHRA dragsters to day . Yeah an the thing is I think I would rather go to a electric Tesla rear end in my hot rod if I had to be told “LS” . If is not 265-400 original small block Chevy . Then I’d rather go electric . The saying in always remember that I coined my self and all the old heads said they agreed was “ if you build a small block it better be a Chevy if you build a big block it better be a Hemi! That’s just the facts based on wins pound for pound inch per inch there ain’t no small block that has more wins than the small block Chevy . If it always on paper forever in our heart. Cause my dad told me when we bleed son our blood cells are not round there shaped like a Chevy bow tie! I’d say Smokey Yunick probably did more for Chevrolet than carol shelby ever did for ford . But never got the recognition he truly deserves he help Chevy with the top three Chevy small blocks of all time 327 in 62, the 302 in the 67-69 Z28’s and the 400 small block from 70-80. I don’t recall any manufacture that brung 400 cubic inches of small block to the table . 400 small block just those words would make racers crawl under rocks an wanna hide! Other than “double humped heads” that would be the first saying that really got every ones attention! I have a 327 350 HP but couldn’t find any old double humped heads I just bought a set of aluminum ones , motor doesn’t have to be “correct” for the truck I’m putting it in . One hell of a video hats off lot of memory lane stuff couldn’t ask for a better interpretation of what they are . I seen a comment about a famous country singer building Chevy small blocks . I thought that was pretty cool this guy does sound like ol Kris ! He does know exactly what he’s talkin about. Love the video, gear heads will be gear heads when there laying in there coffin . Because right around the corner or right out side they will be be . Some guys saying do you remember that car or that motor . Even after the coffin has been lowered into the ground . It will be said I got this part or that part from him or her. Or they taught me this trick or what parts to use and what not to and such! Gear heads for life and even after !

[@johnalarcon5006]

The only head to have the angled spark plugs was the 492 and the reason it was superior to regular castings was the fact that the angled drilling of the spark plugs holes repositioned the firing end of the plugs higher in the combustion chamber so the flame wasn't blocked by the piston dome, but this was only good if you were using high dome pistons, if you were not using large domed pistonscthe results wasn't that big

[@cuzz63]

The 302 was built because there was a cubic inch restriction...they didnt race in the same class as the 426 Hemi.

[@JerryLafferty]

lenord smalls

[@JohnEverson-v9w]

👏👏👍

[@travisbooth7106]

Last set I had redone was in 2007 and I had over $800 in machine work

[@thereluctantgearhead4544]

Yep, ain't gotten any cheaper either. Machine shops are expensive as hell these days. Last pair of old iron 041 heads I dropped off costed me $1200 bucks about 2yrs ago. About what a new pair of Brodix IK 200s cost.

[@scottbrooklyn2995]

How fast can you afford to go

[@thereluctantgearhead4544]

Yep, pile of money can definitely make them perform.

[@Inthefoxhole]

I have 850 dollars tied up in a set of 492 heads.Over sized springs and to boot.Ported Flowed .7/16 studs.Waiting for a home.Mighty nice set of heads for old school.Can't get any better.

[@thereluctantgearhead4544]

You got a hell of a deal. Just seen a nice pair of 492s on eBay, dude wants $2000 for them motherfuckers.

[@thereluctantgearhead4544]

I bought a pair of brand new never used 492s years ago for $500 bucks. Wish I'd have kept them.

[@patrickquirk-qz8ri]

Vortec heads better.

[@chicanou-turn5056]

Back in the days the double hump heads was the only fucking game in town😅Like this guy style

[@shitbox82]

If you must have double humps I would buy the Brodix aluminum double hump lookalikes and paint them up to look like an old iron head…

[@thereluctantgearhead4544]

Yep, that would be the way to go. Was looking at those myself for a sleeper type build. Paint it all Chevy orange.

[@princesrmichael1967]

Old skool fuelie heads were the shit back in the day! Some called them 202's, I called them fuelie's! More air and fuel, the faster you could go! Motors are just big air pumps, so you can figure it out!

[@dalerogrrs7787]

I got two them heads, five foot from me in my garage. I'll never use them.

[@wreckanchor]

Good fuckin video.

[@Chevyssboy138]

Is 400$ for 462 heads good deal there cleaned ready to go

[@thereluctantgearhead4544]

@@Chevyssboy138 Yep, that's not a bad deal. Especially ready to go. Pretty good heads too.

[@Chevyssboy138]

@@thereluctantgearhead4544 sounds like ima get them they needa a fresh coat of orange

[@TargaWheels]

Ran a few sets over the years, on the street and track. They're restrictive compared to aftermarket heads. I liked them when they were cheap and untouched. In the end the best thing about them is the insignia on the ends. But if I got a decent set for cheap, I'd still run them.

[@thereluctantgearhead4544]

They can be made to make good power. Not everybody needs a $5000 dollar pair of heads and 900hp. I've used more than a few of the old humps back in the day. Wasent many choices back in the old days. I'd port the shit out of them and put big valves and shit in them. Machine work used to not cost so much. I'm gonna use some 292s on a old school 70s style racing engine. They've already had alot of work done a long time ago. So they won't cost much to get in shape. Been sitting for decades. Engine gonna be a high compression 327 with a big solid roller.

[@thereluctantgearhead4544]

Built a 327 back in the 80s that made 540hp at 7800rpm with ported 492 angle plug heads. Ran 7.00s in the 8th in a 69 C-10 pickup.

[@larryw5429]

If you want to run cast iron heads that blow them old double humps out of the water just go get some vortec out of the scrap yard lol. Or like he said just go to evil bay and get some DNA aluminum heads and gets some good valves and valve job and it they flow more than both of them!

[@thereluctantgearhead4544]

Better off buying aftermarket these days.

[@WD-sr8qz]

Ran 12.51 at 108.76 in my shit 1979 camaro at 3800 feet with the 461 heads with a 2.02 and 1.60 and a flat tapet. Good times!

[@harleysgarage327]

I've got a ported set of angle plug 492's going on my 383 and two extra sets of 291's for my Chevelle's next engine. Still look cooler than the new shit.

[@thereluctantgearhead4544]

Them old heads are still cool. Had a couple pair of 492s back in the day. Best head you could get back in the 70s. Pretty rare now. Many a fast car was built using them old GM heads. It's just too bad the price of machine work has gone thru the roof. I have several pairs of old heads Id like to use. Brezenski says the 291s flowed the best out of the non accessory hole humps. I'm sure he would know.

[@orbit4367]

I just pulled my 291 heads off the 68 327 and had the valves changed to 2.02/1.60 with hardened exhaust seats and put in screw in studs with guide plates. Cost me 600 bucks in total.

[@thereluctantgearhead4544]

Pretty good deal. You must have a reasonable machine shop available. They all went crazy on the prices around here in the past few years. Cheaper for me to just buy a new pair of heads.

[@thereluctantgearhead4544]

Just the work you had done on your heads would be $1000-$1200 here. Not including parts.

[@orbit4367]

It's a local shop that has been there for about 35 years or so. It's been the same owner and is always fair with pricing and loves to talk about old engines he's done and mistakes learned over the years. For the price you mentioned would be hot tanking heads and block, pressure testing, magnaflux, honing bores reseating new cam bearing and freeze plugs. Along with machining down the heads for guide plates and threaded studs and new sized valves, valves, guides, and springs included. Well it's around the 1200 side of it. There are still some older shops that just love working on them. And most machines have made their money back over the years.

[@orbit4367]

@@thereluctantgearhead4544 I believe it's the newer shops that will try and stick you much as possible as they're trying to payback the money they spent on all the new machines still.

[@thereluctantgearhead4544]

@@orbit4367 Problem is around here is most all the competition went out of business, so the couple that survived think they can just charge whatever they want, because they are the only game in town. Gotta drive 40 miles to the next one and it's not much different. And then there's the "big name" machine shop that thinks they're the best in the world and charge accordingly since they only do racing engines. $1000 dollar valvejobs and shit. They are good, but damn. And they have a 6 month waiting list.

[@anthonylawrence9307]

All facts. I still have 3 sets. I have the machines to work them over. I would be doing them like you, for an old school rod. I have gone with modern aluminum heads "ready to go" and still put hours into getting them right. Every set needed to be lapped in because they wouldn't hold fuel. Remember guys, ready to go ain't ready to go. Still a nice set of new aluminum is the way to go.

[@thereluctantgearhead4544]

Right on

[@marccres6619]

The vortec heads I had under flowed the 462,and the 461. Know my AFR made them look them look like they where junk heads.

[@thereluctantgearhead4544]

Some are better than others for sure. To build a good NHRA "Stock" Eliminator engine, ya need about 20 pairs of the head ya gotta use and flow test them all till ya find the best pair. There can be a big difference in flow with 2 identical heads.

[@8092DJ]

Well I learned some new things and I have to say it was extremely eloquently worded!

[@thereluctantgearhead4544]

@@8092DJ Thanks for watching.

[@thereluctantgearhead4544]

@@8092DJ Cussing like a sailor helps me relax.

[@8092DJ]

@@thereluctantgearhead4544 😆

[@8092DJ]

@@thereluctantgearhead4544 I do like those heads though

[@reriley2002]

I think I got stoned listening to this guy.

[@johnalarcon5006]

Yeah I have 3 sets of them and they can be ported good by a company back east call berinski they Can make them flow great but they are not cheap , they port them for certain classifications of racing, there are many companies to choose from that make great racing performance aluminum heads. AFR is probably the best of them all.

[@thereluctantgearhead4544]

Berinski is good. Been around a long time. If I had an unlimited budget, I'd buy ALL PRO heads. Best SBC heads made. But also the most expensive. I've seen a few 1000+hp Comp Eliminator NA SBCs built with ALL PRO heads, also found on outlaw Sprint cars, they have some serious heads for the old SBC. But ya better be wealthy. Brodix also makes some monster Sprint Car heads that are massive as hell. Very expensive tho.

[@thereluctantgearhead4544]

Patterson Racing can work some magic with the old double humps, they're Superstock engines are always top of the pack.

[@doomman700]

Back east ? Randy Brzezinski is from Wisconsin.

[@americanfreedom1]

I believe rhs makes the double hump in aluminum, someone does. 2 summers ago I built a 12:1 383 stroker and I ran Elgins 30 30 duntov solid with a set of 041X heads in a 81 Malibu with a g80 locker and 410 gear. I ran my buddy in his 81 Monte with a 9:1 383 and he had a Howards .565in .585ex fully roller motor with dart pro1 64cc aluminum heads. We had the same rear end setup except he had a full spool. Basically same exact car. Neither one of us could get traction both cars would spin until up around 45,50 mph. His car sounded like a pro mod drag car with that big cam. I think if we had them hooking up it would have been an extremely close race. You just can't beat the old heads for what they are. The huge difference I seen between my steel head engine and Rods aluminum head engine was the engine temperature. Major difference, we both ran electric fans and I had a much better radiator but he could literally run 15 to 20 miles in the summer time before his motor reached normal operating temp whereas mine would reach full temp in half the amount of time if not a tad less then half with the fans off. Good video

[@edreeder9853]

Them are really old heads, not drilled. Still highly sought after.

[@thereluctantgearhead4544]

Definitely antique. Pretty good shape tho, been on a shelf for 40+yrs.

[@LouisZavala-n2f]

It’s the background music that makes me feel like I entered the dungeon of Chevy knowledge

[@MMCGRACING]

Don’t forget about the 3/4 race camshafts lmao 😂✌️😎

[@kennethkimmons7433]

I always ask , what, you couldn't afford a whole race cam .... lmao !!

[@kenmoule825]

This actually has a beginning point. The 3/4 cam was a 750 lift at the valve on a flathead Ford.

[@thereluctantgearhead4544]

V6 cam....

[@awfulcoffelsonecargarage8215]

I know back in the day my brother ran a three-quarter inch race cam and a 383 cornet and we used to race the rich boys and their Porsches up to the mountains to Phoenix

[@awfulcoffelsonecargarage8215]

It would idle at 40 miles an hour

[@travisbooth7106]

Make good door stops

[@thereluctantgearhead4544]

Haha!

[@thereluctantgearhead4544]

My machinist uses a 1965 Ford tunnelport 427 FE head for a door stop. It has a wasted chamber, but highly unusual head to say the least. Seen another dude years ago use a old 1960s 8-71 blower case from a old fuel car to hold his door open.

[@kkoch666]

Want a cancer stick?

[@thereluctantgearhead4544]

I smoke plenty. Everything will kill ya these days. Might as well enjoy it.

[@Anarchy-Is-Liberty]

Well fuckin' hell!

[@thereluctantgearhead4544]

I try to cut down on my motherfuckin language, cause women and fuckin kids might be reading this goddamn shit. Fuck. Should hear me when I'm not fuckin trying to watch my goddamn language and fuckin shit. I really cut loose like a motherfuckin motherfucker. But I stay fuckin wasted every goddamn day, so my give a flying fuck went away a long fuckin time ago. Fuck it.... It's just words. Can't see the motherfuckers and they goddamn sure ain't gonna cause any fucks any physical fuckin pain unless they are a super fuckin pussy. But there seems to be alot of stinkin cunts with legs these motherfuckin days walking around stinking up the fuckin place. Fuck. 😊

[@thereluctantgearhead4544]

Know what I fuckin mean...

[@thereluctantgearhead4544]

Never trust a motherfucker that don't cuss and is always smiling.....

[@Anarchy-Is-Liberty]

@@thereluctantgearhead4544 I fuckin' hear what you're sayin! Stories are better with a few fucks embellished here and there anyway. Long time subscriber, fuckin' love it!

[@johnkelly8525]

Or just use them and don't listen to anybody

[@thereluctantgearhead4544]

Goes back to that money thing. I don't care what "people" think. But I do like to make my money go as far as I can. Which ain't very far these days. If a guy can buy a pair ready to use for a good deal, they are definitely worth using. Not everybody needs a 1000hp engine. Personally I like the old school parts. Have a huge collection of the shit. Still have parts I bought over 40yrs ago.

[@thereluctantgearhead4544]

Actually these 291s in the video are in real good shape and could be used as is. But most need alot of work. These got all that work many years ago when I worked at a machine shop. Just been on the shelf for decades.

[@jacquesstanz9235]

Are jou familiar with David visard's books and clips on utube.he build an 350 sbc performer intake and w/c crab.he fited a Mike Jones cam in it and made 410 hp I thinks.ive got similar motor and I'm gone get me that cam from Mike jones

[@thereluctantgearhead4544]

Yep, been reading his books since the 1970s. Lots of good info. Dude is sharp. I believe I have most of his books tucked away.

[@georgesam7805]

He seems pretty pissed off over a set of heads. Imagine the diatribe he'd lay down if this was a transmission or something complicated ? And that's one long ass ciggy he's draggin on !! Rubber Duck

[@mattkurtz8549]

Yea they are thicker , but the port design is better on a vortec.not to mention the fast burn chamber. If you want the double hump to flow like a vortec get ready to grind grind grind. But the cool factor is priceless!

[@thereluctantgearhead4544]

Yep, kinda what I said. But the old heads can be ported more than a Vortec.

[@johnalarcon5006]

I actually wouldn't do it myself I'd just have those guys at berinski racing port them for me , I know alot about these heads but compared to berinski I'm a nothing these guys know these heads frontwards backwards side ways diagonal inside out !!! No one is better then them when it come to these heads sorry about spelling their name incorrectly

[@johnalarcon5006]

@The Reluctant Gearhead Yes and no it all depends on what heads you are using

[@thereluctantgearhead4544]

@@johnalarcon5006 They are definitely skilled with the early iron. Prices ain't real bad either.

[@johnalarcon5006]

@The Reluctant Gearhead You're right infact I'm thinking now having my 291's done by them and knowing me il have them do a full on port job, I already had the screw in rocker studs but Iike a dumb ass I didn't have the stud bosses machined down for guide plates , my friend did a little pocket port on them but they definitely need more, iv had them on my little 307 for many years and it really woke that lil beast up, but now I want a Dart 400 stroked 434 , im still going to leave the 307 badges on it just to f with people 🤣

[@rickhuff9030]

My first build was a 283, after swapping out a 265. All I could afford were Power Pack heads. This was back in the 60's. Very few of my buddies managed to locate Double Hump heads. Even back then, people new damn well they were the shit.

[@thereluctantgearhead4544]

I still have a pair of them old Powerpack heads. 520 casting I believe. Work good on 305s with alittle work.

[@thereluctantgearhead4544]

Built a few rowdy 283s back in the day myself. Had to rev the piss out of them. Fun little engines to mess with tho.

[@doomman700]

Brownfields aluminum was around back in the day and if you wanted good heads , you ran them.

[@thereluctantgearhead4544]

Yep, had a pair of old Brownfield heads back in the late 80s. They made power.

[@doomman700]

@@thereluctantgearhead4544 brownfield is basically afr today.

[@thereluctantgearhead4544]

@@doomman700 yep

[@thereluctantgearhead4544]

@@doomman700 I think Tony Mamo bought them out years ago.

[@Stevesbe]

Even Back in the 80s i had a set of 461 on my 327 the guides were shot so i just bought a set world product heads pretty cheap.

[@brucegrega8405]

Oh Man, fuckin badasss STONED😂😂

[@truspirit1925]

I had a pair back in the 90s and sold them like an idiot.....big power increase on basically a stock motor....u can make a 180 motor a 280 motor by a simple bolt on job.

[@Mryiyo209.]

I DONT THINK YOU HAVE ENOUGH INTAKES LOL

[@thereluctantgearhead4544]

I have a hell of a intake collection. At least 40-50 if I layed them all out together. Alot of them are for non Chevy engines, like Oldsmobile and Pontiacs. I have 60+ engines tucked away. Over half are Chevy engines.

[@thereluctantgearhead4544]

Always looking for more.

[@jesusarriaga8761]

I just picked up a set of 041x heads for $40… and they already have hardened seats…. I’m gonna have the shop machine drill some steam holes for me, and in a sbc 400 they will go.

[@thereluctantgearhead4544]

@@jesusarriaga8761 Hell of a deal. Real good castings.

[@jasonmassengill7865]

What size valve covers are those? I have double hump heads and was told they are different bolt pattern for covers. Thanks for any help.

[@thereluctantgearhead4544]

Those are old school gold anodized Moroso valvecovers from the late 1970s. Double humps have standard old school bolt pattern. Those heads with the staggered bolt pattern came on late 50s 283 and 265s. Pretty rare.

[@strattuner]

327 punched to 339 have the crank lightened,carrillo rods,double humps ground and flowed,install rocker screw in studs,11.5 probe pistons,air gap 780 holley,isky cam and lifters,harland sharp rockers 1.6 dropped into a 55 210 fenderwell headers 4.56 gears mickey slicks,turned 10.60 all day till it got to 98 degrees,3speed trans out of a big block wagon,those were the days,10.00 cranks for replacement

[@thereluctantgearhead4544]

Yep, still have a couple 327s laying around I need to build. Always been one of my favorite engines. Lots of potential.

[@strattuner]

@@thereluctantgearhead4544 lighten that rotating assembly and blow by them using an extra 1000 rpm's on the big end,it worked for me,go get him hot rod

[@Stevespoken]

Man speaks the truth back in the day you could take it to napa get em machined and have a nice engine otherwise you might as well go LS more durable lots of power

[@housepumpinpc3983]

Vortec nice and cheap. If we are trying to stay original, I can see these. Dart heads are way better, yeah the technology smokes the double humps. Most cats I know dumped the sbc and went LS which are the new sbc.

[@larrygriffin7024]

Your voice sounds like a interdiction for a horror movie

[@moodybluemotorsportsDwneKnos]

1st time viewer pal and I freaking love your content!!! Funny but 👍true, don't 4get the turbo 292 heads, there a killer head for 10k rpm's and will make more power at a high rpm engine but anything below .500 lift the vortec are king.but we ole timers love to build double hump heads!!! Also I hit the subscribe button!!! Come over to MoodyblueMotorsports! Thanks buddy

[@thereluctantgearhead4544]

Thanks for checking it out man, I do miss the old days for sure. Yep, had a few pairs of them 492s over the years myself. Alot of potential in that old iron. Just takes some effort.

[@thereluctantgearhead4544]

Had some 292s back in the day also. Ported the hell out of them. Definitely made some power on a 331ci I built with a tunnelram, twin 660s and a big solid roller with 12.5-1 compression. I revved the shit out of that engine. Started as a 1966 L-79 350hp 327. Mine made around 540hp. 8500rpm.

[@thereluctantgearhead4544]

@@moodybluemotorsportsDwneKnos I have a pair of ported & milled Crane Fireball over the counter "292" angleplug "Turbo" heads I'm building a rowdy 327 with. They are extremely modified. 290cfm intake runners, 210+cfm exhaust. Milled to 50cc chambers, 2.05/1.60 valves. Gene Fulton did a lot of work to them back in the early 80s. Engine gonna make 550+hp with them. Best old iron GM heads they made. Mine were cast in 1975.

[@jameskiesau7543]

I think by the sound of it you'd be way farther ahead if you'd put that pipe down and just do one thing or the other !!!!! Sounds to me like it's pretty decent shit in that bowl. It also sounds like you do know something about small and big block Chevy motors---- about as much as me I think on the subject of restoring '67-'72 Chevy/GMC 4x4's. I've bought ,sold, and body off frame restored close to 400 of them since 1979. Don't know your age but you seem to have been around the block a bit (like me) --like the old rings of a freshly cut 50-60 year old spruce tree. You shot a good video --at least a guy learned something from it , not like these fuck'in punks just burning their rear tires off their truck that their pops just bought for them. Take it easy buddy !!!!!! Jim

[@thereluctantgearhead4544]

Pipes are wasteful. I prefer to roll em up with 1.5s. Yep, I'm a grey beard, had my hands on engines everyday since around 1981. Done built a bunch. 67-72 Chevys are my favorite bodies. Had a few of them too. Actually started with motocross bikes back in the 70s as a kid, I'd blow up my engines and nobody would fix them for me, so I had to figure it out myself. Been fuckin with shit ever since. Bought a 53 Chevy when I was 12, that's how it all started with cars. Built a 400 Pontiac engine for it. I had more than 10 cars by the time I turned 16. Old cars were cheap back then. I've had a yard full of cars my entire life, still do today. Shits definitely an addiction.

[@michaelnelson9140]

Or to bring an engine and car back to factory specs. Otherwise use modern heads.

[@philobobcat3495]

I ran a small block in a pro street Camaro. Didn't have enough ass Tossed it went Big block

[@thereluctantgearhead4544]

I prefer bigblock Chevy engines for my big power builds, but a well built SBC can get the job done. I have a bunch of both.

[@thereluctantgearhead4544]

Definitely easier with the Rat.

[@Thumper68]

I have a set 492 casting with accessory holes already been to machine shop got valves and springs in them and threaded ready for studs id sell for $800- $1000

[@extremewhitetail837]

Talk about STONED! But love the video. Thanks for the information sir.

[@thereluctantgearhead4544]

Haha! Glad ya enjoyed it.

[@drdab_]

041 heads same as double hump xcept with accessory holes

[@thereluctantgearhead4544]

Yep, have a pair of them on the shelf too. 186 pretty much identical also.

[@nicholasmcelhose9195]

Those 041 heads work well had set on a 1969 355 still running strong after about 13 seasons running

[@banditeastlick2471]

Only way i improved mine was polishing them and was no way close to stock when i was done

[@kirkgordon2146]

Them mountain man of the sbc lol. Love the content and education 👍

[@Frank-k7v]

I love these heads they are absolutely perfect for dirt cars

[@chrishansen7004]

The smallblock Chevy while an amazing motor they're starting to reach a point where it's not worth building them anymore sadly, they have dried up from the junkyards and a good set of cylinder heads that are worth giving a hoot over vortec heads will easily cost you over a thousand dollars just to stay competitive with a ratty ol 5.3 with just a small cam, so then you build a 383 stroker, over a thousand dollars in a rotating assembly then over 1000 in cylinder heads meanwhile someone else is grabbing a 6.0 putting in half the money and still making more power than the 383

[@thereluctantgearhead4544]

That's the general perception these days, but I've seen a different story in my life. Not everybody wants to jump on the LS bandwagon. Some people prefer to keep old engines in old cars. The trouble with the LS fanboys is they try to convince everyone that the LS is the only engine that can make power. But I'm calling bullshit on that. I'm really sick of hearing about them and everytime someone talks about a traditional SBC or a bigblock, there's always that guy telling you to LS swap it. I've built plenty of LS engines at work and worked on a hell of alot more of them, I'm pretty familiar with the LS actually. And I also know it's just one choice of many. In the real world, for every one LS I see being built I also see 10 SBCs and 5 bigblocks and 20 SB Ford's and a whole lot of Mopars. Even a few Buicks and Olds and Pontiacs. People like what they like and there's usually no convincing them otherwise. LS ain't doing shit that many other engines are also doing. SBCs ain't going away anytime soon. And if a person is so fuckin poor that they can't afford to build an engine, I suggest another hobby, cause hotrods ain't cheap no matter what engine you choose. And when it comes down to it, the bigblock chevy is still king. Add boost to a built bigblock and see what ya get. Fastest street car in America has a bigblock chevy based engine. LS is way overrated to those Facebook experts. They think they can pull a junkyard engine and stick a $200 dollar turbo on it and have 1000hp. Shit don't work that way, and those boosted junkyard LS engines never last long. You can do the same thing with a bigblock and make way more power and alot more torque. I'll never jump on the LS bandwagon and many other old gearheads think the same way. That shits a millennial thing. I also don't wear skinny jeans either.....

[@thereluctantgearhead4544]

But people can build whatever they want and I don't try to push my shit on anyone. I just know what I like. Actually I started with Pontiac, but they got too expensive to build and the parts are getting rare. SBC is the cheapest engine one can build and they can make more power than most people need. My 84 Camaro will run mid 10s in the 1/4 with a basic single 4-barrel 357ci SBC and be able to drive it everyday. I'm totally satisfied with that. If I want it faster, I have a bunch of turbo shit and bigblocks laying around. But for a cruiser, it's way faster than it needs to be. And it's extremely simple.

[@thereluctantgearhead4544]

I don't recommend people to use Vortec heads or any other stock head. Waste of money these days. So many aftermarket heads to choose between that it just don't make good sense to dump a shitload of cash into old heads. I have seen dirt track 383s making 560hp with Vortec heads and 355s making 520hp with them. So they can be tweaked to make good power. But those were pretty rowdy high compression builds. Don Kirn built a 15-1 427ci Rodeck block ALLPRO headed single 4 barrel SBC back in the late 90s, it made 1005Hp NA with a 4150 flange 1050cfm carb. Don't see many NA LS engines making power like that. And that was 25yrs ago. The heads flowed over 450cfm. Sprint car shit. Most young bucks think every SBC is a 200-300hp engine. But people been building them for racing almost 70yrs. So there's parts available to make them do whatever ya need them to do. Shit, Rick Santos ran 372ci SBCs in a Top Alcohol dragster class back in the mid 90s, a class fuel of blown alcohol Hemis, he had the only SBC and he was kicking everybody's ass. They ended up changing the rules because of him, they took away the weight break for runny a SB engine with inline valves, so he had to run at the same weight as the Hemis. He still gave em hell, but not as bad. But that Top Alcohol 14-71 blown 372ci SBC was making over 3000+hp back in the mid 90s. I've never seen an LS making 3000+hp. I don't hate the LS engine, I hate the cult following it has and the fanboys trying to force it on everyone else. Can you imagine if the SB Mopar guys went around telling everybody that their shit is obsolete and junk and should be swapped with a SB Mopar. Shit would get annoying real quick. But it's only LS fanboys that do that shit. I've built over 1000 engines in the past 40yrs, they were all brands and types, so I've gotten a pretty good comparison first hand with many engines. What I build is a result of that experience, I've learned that power per dollar, it's hard to beat a traditional Chevy V8 engine with anything. And new parts are being developed and sold to this day. If they were that obsolete, I don't think companies would be developing brand new SBC blocks and heads.

[@thereluctantgearhead4544]

And speaking of a 6.0, built one for a guys 55 Chevy drag car about 10-12yrs ago, costed almost $10,000 bucks to actually build it, and it made 590hp. I can build a 350 to make 590hp for half that cost. I've built 383s and 400s that made well over 600hp and still costed way less than that NA LQ9 did. I had a 388ci SBC I built for myself about 20yrs ago, it made almost 630hp NA, costed around $7000 bucks. Ain't none of them "cheap" when you build them from the crank up. Id never trust a junkyard engine in a racecar. I bought 10 SBC core engines for $1000 about a year ago. One was a 95 LT1. Most are 4-bolt 1970s blocks. Still good deals out there.

[@roywolfe7054]

If you hit the fast forward on the screen he really talks normal he reminds me of Ole mountain man 🫤

[@thereluctantgearhead4544]

I'm from Louisiana. Think swamps. 45yrs of smoking like a freight train will affect ya.

[@TIGaTRONiX]

I'm adopting a 327 block with 202 heads to start, I'm going to make this engine shine 😊

[@thereluctantgearhead4544]

Damn good engines to build. You'll be happy with it. Durable as hell too.

[@CzechSixTv]

A buddy of mine has a '74 Z28 with an L82 that the previous owner topped with "rebuilt" 186 double humps from a DZ302 or '70 LT-1. The heads bumped up compression and the car ran great at first but started losing power after a few years. Turns out the unhardened valve seats were slowly getting beat to death without leaded fuel. He was looking at $1500+ to rebuild the heads with hardened seats and probably guides until I talked him into a set of L31 Vortec's. We found a low mileage set at a JY for $200 and after having them surfaced I lapped the valves and slapped them back together with new Viton seals. The car ran better than ever and we actually had to up the carb jetting. It's hard to beat an extra 35cfm for under $400 and I didn't even have to listen to a grinder for 10 hours to get it. I've built strong motors with double humps in the past but like you said, after 50 years they're probably gonna need a lot of work and that's gonna cost. That's also assuming you can find a rebuildable pair of castings.

[@thereluctantgearhead4544]

Yep, hard to beat them Vortec heads. Hell of a deal really.

[@clarencemc3rd295]

Then you still have to drill holes for brackets on street engine

[@thereluctantgearhead4544]

Or use a short water pump and old style brackets. They also make low mount alternator brackets that attach to the block, and some to the water pump. I prefer using the short water pump setups in V8 S-10 swaps and Vegas too. Every little bit of clearance helps on some swaps.

[@thereluctantgearhead4544]

A lot of 350 sbc powered boats used short water pumps and have cool alternator brackets and pulleys. 70s corvettes too.

[@TheFretlessmaster]

When it comes to Double. hump. heads, or any old 60s Chevrolet heads. it's not so much about the speed. It's the nostalgia. They look cool. They sound. good. a hot rod is a hot rod And you can still live like back in the day. when things were good.

[@thereluctantgearhead4544]

Yep, that's why I'll always like them. They come from a simpler time in life. Cast iron chunks of history.

[@thereluctantgearhead4544]

Wish it didn't cost so damn much to get them into shape these days.

[@silverstreak232]

Double Humps are classic for sure. But, they are getting used up at an alarming rate and are probably better left to the classic car restorer. FRANKENSTEIN SHIT??????? Superstock racers still use them to stay within class rules and regulations. They're also prone to cracking. especially when they're highly modified.

[@ccfreedomseekerconstitutio8767]

Nice engine 🎉 nice thoughts 🎉❤ good work 🎉

[@tylervassar714]

Best video ever!! Haha

[@joeshumo9457]

I like old heads for street use. Double humps, 882’s, Corvette / zz4 aluminum, Vortec. They work great and do just fine at the 400 hp mark without going too nuts. You just have to be able to do most of the work yourself.

[@thereluctantgearhead4544]

Yep, they still have their place. Too bad the machine shops charge so much these days. I have a bunch of killer old iron, but it would cost a fortune to get them all ready for use. I'm in that situation now, I'm working on a 454, was trying to build it cheap with parts I have laying around. Was gonna use a pair of 820 casting 1971 Oval port heads, they were completely built back about 35yrs ago, but now they need all new guides, fresh valve job and milled again. I'm just gonna buy a new pair of budget AFR Enforcer 335cc aluminum heads bare and still have money in my pocket. I already have enough parts to build them and I can set them up. Not to mention they flow alot more air. I'll probably bowl blend them and throw them together. I wanted to use them old iron heads, but it would cost me around $1400-$1500 bucks to get them in shape. The AFR Enforcer bare pair is $1200. Already have Manley intake valves and Ferrea exhaust valves for them and all Lunati hardware to go in. Of course I gotta swap pistons too for the increased cc chambers to get the compression up. But it'll have alot more power, so it'll be worth the hassle. Can't nothing be cheap and simple anymore it seems.

[@Jay-fb2lv]

882’s are garbage

[@ThanhLe-wr3ez]

Máy quá đẹp

[@lennygerber5631]

I have an awesome set

[@michaelnelson9140]

Camelbacks

[@rustyoldwrench6386]

Hell man you ever think of singing country songs

[@thereluctantgearhead4544]

Haha!

[@richbon9904]

I had a 406 with set of these amd had em hoghedbout. Flowed 293 cfm at 630 lift. Had a 1000cfm holley 4150 carb. Wasnin a 79 elcamino rear engine mud bod toy. Its still got a oic on bangshift site under 850horse elcamino. The engine in it was weak so i had build another one for it and finally got rid if it. Axles were fluopedbyoside down so it wouod run foward. Hilarious barn build. Thise heads were epoxied amd all because if the port work.

[@thereluctantgearhead4544]

I've seen people get big numbers out of them, just look at the NHRA Superstock 350s are doing. Definitely have potential.

[@richbon9904]

@@thereluctantgearhead4544 just alot of fun man. 👍

[@thereluctantgearhead4544]

@@richbon9904 I know that's right. Half the fun is building them.

[@confuse3671]

Lets be clear, the only people who really care about "numbers matching" are the corvette people. While there might be one or two other muscle car owners that car, most do not. On a '67 corvette, numbers matching might get you another $50K on the car. Not on your 350 camaro... I just laugh at the guy who wants 10K for his bare block at the swap meet- hoping that some sucker will happen by his table.

[@thereluctantgearhead4544]

@@confuse3671 Yeah, rich people are pretty fuckin petty. I couldn't care less.

[@thereluctantgearhead4544]

@@confuse3671 I'm a hotrodder, never gave a shit about chalk Mark restorations.

[@thereluctantgearhead4544]

@@confuse3671 Seen one asshole that had a 1958 348 tri power Chevy engine disassembled, wanted 50 grand for that motherfucker. Just seen a 1960 348 on FB marketplace for $1000 bucks. Some people are just greedy as hell

[@thereluctantgearhead4544]

@@confuse3671 The rich assholes worried about numbers correct are the same rich assholes that see old cars as financial investments. They are not really car guys, they just fucked up the market for the real car guys. Now I can't afford the cars I had when I was young.

[@confuse3671]

@@thereluctantgearhead4544 To you and others.... I never want to buy a car that I'm afraid to drive.... I would never ever pay for a points restoration - paint the damn driveshaft... I don't want rusty parts.

[@axxelhammer2596]

Fuelies, I had a set.

[@mikehutchinson9318]

I ran a set of CRANE FIREBALL ANGLE PLUG HEADS…BACK IN THE LATE 70’S

[@thereluctantgearhead4544]

I have a pair now. Killer old heads. Flow better than many aftermarket modern heads. Fixing to build a old school 70s type racing engine with them.

[@thereluctantgearhead4544]

Fixing to do a video about them I guess, not many people ever heard of them. Only us old farts.

[@marklinkous9869]

Mine have already been done up and I'm about to put it all together I've been saving parts for 20 or more years

[@thereluctantgearhead4544]

That old school shit is still cool, just got expensive these days. Plenty of potential in them old heads.

[@jaycleveland6910]

I have two sets

[@cdpperformance2613]

I just had a set of 186’s heads with accessory holes redone was on a 1974 350 I had machine to .030 over would you know flow #’s on stock 186’s heads trying to pick a mild flat tappet cam

[@thereluctantgearhead4544]

Most 041/186 heads flowed in the 210-215cfm range.

[@thereluctantgearhead4544]

Get a cam with a tight lobe separation. 106 or 108 will help your program along.

[@ronnielewis1862]

Got 186 ,s on my 91 3/4 4 wheel Dr runs great I need more camshaft to take advantage of them, they are screw in stud's and roller rockers with hard pushrods , I converted the TBI crap to HEI and Qjet 2 great power and milage ole crane blueracer cam , I really need about a 268 but I only buy Howards cams now, Thanks for sharing I'm an old motor head at 69 I've done a lot of Drag Racing 😊😊

[@1996slamster]

You’re right. Aftermarket aluminum heads will pretty much out flow any of the old cast iron heads no-matter what make. Nowadays anyone can screw together a bullet without thinking… Without Thinking!!

[@thereluctantgearhead4544]

Yep, it's alot easier these days to build a powerful engine. Almost too many choices. Takes alot of work to make a 60yr old head match a modern aftermarket head.

[@1996slamster]

I prefer the work. We run a set of very modified 462’s on our Super-Gas car.

[@thereluctantgearhead4544]

@@1996slamster yep, I still like a lot of the old ways of doing things myself. I grew up around drag racing in the 70s, so that still has a heavy influence on how I do shit. Always preferred the modified classes and Superstock.

[@johnalarcon5006]

For the most part yes but not all after market aluminum heads are the same I definitely wouldn't take a set of edelbrock heads over a set of AFR. AFR are probably the best out there

[@johnalarcon5006]

@@1996slamster I actually have a set of them on my 72 vette that the previous owner installed

[@shanecloyd6646]

What about the Rare corvette 2.06 experimental heads? If I, remember right. On front of the heads, was a connected small double square. I, might be wrong. Been years since I, seen those heads used on a 355 Chevy, that was on a pulling tractor. That 355 ran great with those heads!!

[@johnalarcon5006]

What head was that????? was it aluminum or iron???????

[@shanecloyd6646]

Iron

[@johnalarcon5006]

@@shanecloyd6646 I remember something to that effect but need to check my records I have alot of information on these heads written down , they originally called them the fulie ( F I ) heads because they were intended to be used as fuel injection on early corvettes but it really never materialized , and so what GM did because they had all these castings laying around that were already made they basically decided to use them on alot of intermediate cars like impallas, caprice, ect these heads were intended for the old dog house style fuel injection Chevy made !

[@johnalarcon5006]

There was a 624 double triangle head but it was originally used on the LT1 1971/72 camero and also used on the 1971 -74 Z/28 and 73 -79 L-82 engines, this is the only double anything head I found. Of all these cast iron fulie heads the best one is the 492 castings. Now Chevy made a 292 head that was called the turbo head and this particular head was the first casting designed specifically for racing applications, the turbo name was from a turbo charged Indy engine that never happened but somehow the turbo name stuck , these heads also had angled spark plug for engines with higher domed piston , the 492 heads also had angled plugs for the same reason

[@johnalarcon5006]

@@shanecloyd6646 the very first fulie head castings was the 461 head the last castings were the 291 head

[@rockyesterline7942]

How right you are I had double h u m p s on my 327 then went to Big Block blew the doors open and never looked back 56 Chevy Gasser

[@thereluctantgearhead4544]

Bigblock definitely the way to go if ya want serious power. Alot easier platform to build. Even a mild bigblock makes alot of power.

[@rockyesterline7942]

@@thereluctantgearhead4544 yes I was beating Big Blocks with my 327 but broke a crankshaft in half then went to Big Block and that's all she wrote I was putting out 600 horsepower and never ever went back to small block

[@inscoredbz]

I would put money in double humps before I would vortec heads, they at least won't crack. I've rode in a shitload of cars with 194-150 valves on a small 350 that absolutely screamed with nothing special done to them. Those dart knock offs, promaxx and flowtec has made both vortex and double humps obsolete.

[@thereluctantgearhead4544]

The most powerful engine I've ever seen with modified double humps made more power than the most powerful engine I've ever seen with modified Vortec heads. And I've seen thousands of SBC builds. I've seen NHRA legal Superstock L-79 327s making 600+hp with the humps. And 383 dirt track engines with Vortec heads when allowed made around 560hp. The 355s were around 530hp with Vortec heads. 295hp 68 350 NHRA legal Superstock engines made around 560-580hp with 041 heads back in the mid 80s. They make more now. They used modified 1.94/1.50 heads too. And they flowed like a motherfucker. Most people wouldn't believe the real numbers. But they would put alot of current day aftermarket aluminum heads to shame. Ran 10.50s in the 1/4 with a Q-jet on a Victor E intake 35yrs ago.

[@thereluctantgearhead4544]

Those Promaxx heads are real good heads for the money. Same core as the Brodix IK heads, but better. Probably best deal going. The 215s flow damn near 300cfm out of the box. About $1300 will have a pair on your door step. Real nice heads.

[@thereluctantgearhead4544]

The Promaxx 215 Project X heads are the ones to get from their offerings. Real nice.

[@inscoredbz]

@@thereluctantgearhead4544 from what I've hear they are afr copies. For the price, they can't be beat.

[@thereluctantgearhead4544]

@@inscoredbz Yep, they really stepped up the game. Definitely hard to beat.

[@tucoramirez8397]

How would a pair of good used Vortec heads compare to them?

[@thereluctantgearhead4544]

Vortec heads make more power when compared in stock form.

[@ScotEd-o2w]

What year are those? I have a set of 69 Z28 with the provisions for the long water pump

[@thereluctantgearhead4544]

These are 68. Last year of the no accessory holes. 291 castings. Came off a MO code 68 302.

[@thereluctantgearhead4544]

Also have a pair of 292s with accessory holes, but they are over the counter GM heads from 1975. Angle plug "Turbo" heads.