Buy These SBC Heads If you Find Them! They FLOW!

[@tjed1071]

First they were “Pro Top Line” from New Zealand, then they changed their name to “Pro Action” they made the castings for Engine Quest or “EQ” for a short time, they went out of business and finally Comp Cams bough the casting and sells them as RHS but nothing has changed in the design. I used to sell the Pro Top Line Heads back in the 90s and still have some pairs of cast iron for sbc 200 and 220 fully CNC runners and chambers new in boxes which they only produced at the beginning and stoped because it was too expensive to CNC cast iron.

[@dontasmith2241]

Do you have a pair for sale

[@thereluctantgearhead4544]

I have a pair of the 220s. Made over 580hp on a 357ci and ran 6.60s in the 8th.

[@decaturboss]

@@thereluctantgearhead4544 you have a pair of the RHS 220? Any work done to them?

[@thereluctantgearhead4544]

@@decaturboss yep, except mine are Pro Topline before RHS bought the molds. Mine are bowl blended with 2.05 intake valves. Believe they were cast in the early 2000s. Real good heads.

[@TroyHigdon]

Hi. Would you happen to either have a pair still for sale and know where I could find a set? Thanks

[@larrynorsworthy8582]

I bought a set in 2004. Pro topline, through speedway motors. They worked super especially with the reccomended intake and cam.

[@sprinterx]

Similar to Dart iron eagle heads I used on my 360 Sprint car in 1995 to 2009. They were cast iron. Best set I had were 235 cc runners with 49cc chamber. Used a flattop piston. Turned 8400 rpm with 2 3/16 Hilborn injectors on methanol.

[@tumblew33d69]

How much lift ? Compression? Dyno numbers?

[@JimmyZ408]

I'm running these heads on my 99 GMC Truck with a Whipple AX100, 36LB injectors, Comp Cam, Etc. 411 PCM swap. Good video, subscribed.

[@elinino5275]

I have a pair of EQ heads but with center bolt valve covers. And yes, they are heavy AF!

[@purple40hog]

Cast in Toowoomba, Queensland Australia as that is the T in the circle is Toowoomba Foundry Trade mark, I was working there at the time,

[@tonycolca2241]

It is amazing how many different heads are out there for small Blick chevy both factory and aftermarket bewildering!

[@mikef-gi2dg]

Engine quest AEQ heads are talked about extensively on the Brezenski porting site, they port exhaust and intake manifolds ect.

[@craigr13666]

I think I have an old catalog at the shop. We used to run them on IMCA class engines that require non modified small valve cast iron head. Really well engineered for the time frame they were cast. You can thank politics and IMCA for the disappearance of the availability of the EQs. Just sold the last pair of NOS heads we had at the shop last summer.

[@cuttersperformance]

I did end up getting some info on these from EQ. They are a old new Zealand cast EQ/RHS racing head. And yeah very impressive as cast head

[@shoominati23]

It's always the way when a small company has a desirable product and gets a market share. They get bought out by some big distribution company and they just suck all the assets out the company and leave the shell, pretty much a pretend company. You try to order anything and it will sit on 'backorder' for as long as you're willing to wait.

[@backyardbuilttrucks1]

Here ya go bro. Enginequest IMCA/WISSOTA Small Block Chevy Cylinder Heads. What EQ stands for . Speedway Motors sells them . A Flo-tek head is best bang for your buck we have run a lot of boost on them with good luck.

[@kennethcole2330]

Eg heads but thats not those heads I seen the heads your talking about but it's not these ones

[@hillbillysdime7000]

Also I wanted to say I really enjoy your videos. I've always had a strange fascination with sbc heads and you are really putting in the work on flow numbers and info on different heads. I definitely love to watch your videos good info keep up the good work.

[@cuttersperformance]

Thanks brother! I appreciate the support Cheers!

[@crsracing1313]

Iron headed sbc my dad had back in the mid 00’s had pro Topline heads on it. Motor made 650 hp na and had a 200 shot single stage on it. Ran 9.80 on motor and 8.90 on the 200 shot in a foxbody notchback

[@jeffreyarthur1056]

We used to run a set of those out of the box on a 385 c.i. Super stock/limited late model dirt car. It hauled the mail. We won 11 out of 13 finals that season.

[@cuttersperformance]

Hauled the mail haha love it! I think im going to build a 388 with those for the channel. Would be fun to dyno

[@somedude2433]

These are eq heads. I can confirm most of the guys here to be correct. Specifically those looks like spec castings we use in the racing world. They’ve been around quite a while and have many variations of them. The smart guys know which ones are best as not all are exact and tech inspectors just see the “eq” and never know better. Wished I could help more.

[@vinshanestrickland4179]

They were imca heads from early late 90 to early 2000s they love port work and will blow your mind on the flow bench if touched right they hold great velocities to volume I ran them on a 383 I built just to see how they worked comp to a set of aftermarket aluminum heads I had that were cnc ported but were in same cat exc for being aluminum with the cam custom ground they will hold there own ill dig up the records of them and tell you flow #.. those heads were #1 seller for a bunch of cast headed builds and never let down they love boost as well but then again what don't the cam was solid lift well into 600s lift ill post after I find in filing cabinet wit the cam and intake we used we got well over 2% per cfm more in the 2.2% range

[@dadgarage7966]

Way back in the day, Racing Head Service (RHS) was a big fish in the water.

[@approachingtarget.4503]

EQ was originally a Canadian cast head for the American market. They were originally made for classes that required factory style cast heads. IMCA and claimer series. They have now been bought out. Now cast in lower quality locations. You have to find pre 2015 versions to get the good ones.

[@markforrestsr2242]

Do you know if these heads were available in 1978?

[@kennethcole2330]

I find some info on those heads, and yes great heads better than most high dallor heads, ok get this they cost right now 1100 bucks for 1 head 2200 bucks for 2. They came already ported thats why they're so badass. Great score dude good job

[@joecappo6480]

They are Engine Quest casting and I do believe they were sold through RHS (Racing Head Service) they do not offer the cast iron versions anymore but they are being sold in aluminum from what it looks like.

[@reedsilvesan2197]

David Vizard flow tested a set of 200cc 64cc chamber heads and they flow as well as the Dart platinum pro's. I bought a new set, ported them further, milled them and had 2.0 valves installed. I expect to make about 625HP and around 500 ft/lbs on a 13.25 cr E85 385 stroker. They are excellent heads.

[@kristikhan7920]

The 200 cc version was available directly from EQ for $600 shipped. HVH has some in stock.

[@KL-ml4xw]

Who is HVH?

[@6426yy]

I bought a set of these for $350 a few years back. Had to have a couple guides fixed but they are a nice casting.

[@roddavis5494]

I bought an 385 SBC last year with 305 vortec heads on it, its currently at the machine shop now getting rebuilt, I bought a pair of 906 heads 2/12/21 from someone on Facebook market for a 150 and dropped them off to the shop doing my motor Monday, hopefully they don't find any cracks so I can use them and keep 305 vortec heads FOR something else in the future. I forgot to ask them how much to do the screw in rocker studs and some new valve springs when they do the valve job if everything else is ok with the heads. this is my first motor project.

[@cuttersperformance]

Awesome man! I got some 305 vortec head flow videos coming up you may be interested then

[@roddavis5494]

@@cuttersperformance I have 1 question would you be able to suggest a flat tappet cam for a 385 sbc with 906 vortec heads and I will probably use the 1.6 intake and 5.2 exhaust comp cam rockers that was on my 305 vortec heads. The motor will be going back in my 6in lifted 92 4×4 suburban 4.56 gear ratio front and rear, also it has 20x14 rims with 33in mud tires, 700r4 with torque converter with a stall of 2600 rpm, holley 750 carb and I have an high rise intake manifold with an inch carb spacer.

[@kroeker75]

Just watched this video last night and happened to find a set of 64cc EQ Vortec heads on FB marketplace today. Current owner used 1.94 in and 1.5 ex valves with beehive springs. After watching a few of your other videos, I'm thinking I should buy them and get a valve job to use 2.02/1.6 valves with some mild porting. Beehive springs and cam to get over .500 lift and i should get quite a jump in power. $400 CDN is quite affordable for the potential of those heads! Great info in your vids

[@cuttersperformance]

If you dont but them let me know and I will haha

[@RAMMBRUTE]

The T stands for TooWoomba Foundry which is in New Zealand. That is where they are cast and yes they are awesome

[@cuttersperformance]

That is 100% correct, Eq got me some info on these. Casted in New Zealand (RHS EQ combo) Very good heads! Thanks for the comment!

[@joshburt6771]

How to hook up a volt gauge to a Chevy truck

[@notsofresh8563]

Toowoomba is in Queensland Australia, not New Zealand btw....

[@warrengreen3217]

@@cuttersperformance is there something I can get like them for a 77 351Windsor and for the 350

[@Classickoolcars]

@@notsofresh8563. 🤣🤣🤣🤣. Toowoomba- In New Zealand. 🤣🤣. Google is your friend!!👍

[@thegalli]

They're probably some kind of circletrack secret sauce modified thing

[@20alphabet]

Circle track guys love EQ heads.

[@jamesletson3823]

I ran on 90 over bore 283 with 280 magnum comcam an turn 9000 rpm 390hp at rear wheel it's close to the 302 with 3in stroke if find a 283 build one with the EQ heads you will be amazed 🏁

[@cuttersperformance]

Thats badass man! Im thinking about using them for a nice 383 stroker build for the channel

[@jeffstewart1182]

Those heads are used on limited modified dirt cars I believe

[@stevelindsay3643]

I have an incredible set of early EQ cast iron gen 1 sbc heads. I have found next to no information on them. They have a 50cc combustion chamber and huge 206 intake valves. I haven't put them on anything yet, they are brand new and have never been run. I bought them from a drag racer who was building an engine for someone. They decided to go with an aluminum head and I was able to buy these ones. I have to build an engine to handle the heads.

[@markforrestsr2242]

Were these available in the 70's? Do you know the best sbc heads that were available in the 70's?

[@mikesauer7775]

I have world product stock replacement heads w/+1.94 intakes.stamped st. T' could be for torquers which had 2.02 intakes. Better than camel hump fueler heads. Clean up grinding can get 420hp on solid 350

[@allywilkeforsenate]

I believe they had a bow tie on the 2.02 heads?

[@thereluctantgearhead4544]

My 220 Pro Topline heads flowed 308cfm at .650 lift and over 210 on the exhaust. They had minimal work done. 2.05 valve added, bowl blended. That was almost 20yrs ago. Made just over 580hp on a 8000+rpm 357ci SBC. Real good heads, I still have them on the shelf.

[@cuttersperformance]

Sounds like a sweet setup!

[@thereluctantgearhead4544]

@@cuttersperformance it ran 6.60s in the 8th at 105mph NA in a G-body.

[@thereluctantgearhead4544]

@@cuttersperformance I'm going to use them on a turbo build next go round.

[@ryangulley1082]

My lsx dr heads flow 360 cfm.lmfao

[@ryangulley1082]

I mean 460

[@fabricationnation8052]

Anyone ever heard of SBC "clock" heads.....supposed to be a stock head that flows amazing

[@ruthlessronniethemechanic5639]

These heads are prominent in the USA super modifieds. They are a awesome head for 400ci or bigger

[@staylebutler9135]

I have some eq vortecs. They are awesome

[@elinino5275]

Do the vortec only have center valve cover bolt holes? I have a set of EQ's but they don't have the 4 VC holes like these

[@elprogramadeluisfigueroa1085]

Great video and nice heads. Looking forward to that 305 heads video and by the way EQ also made 305 vortec heads.

[@cuttersperformance]

Yeah EQ makes some nice stuff I thought it was very weird when I emailed them about these heads and they had no idea haha

[@jesseharriott4253]

Look into old tow truck wreckers some of them had upgraded heads to make more power for pulling heavy loads up hills. The thick deck would help with temperature when your foot is to the floor for long periods of time.

[@joejones9944]

@@jesseharriott4253 Exactly

[@donellmuniz590]

Something puzzling: it seems that EQ is an Aussie company, that also manufactures heads for RHS, aka Racing Head Service. RHS, in turn, was once affiliated with Comp Cams. Some of the first crate motors were offered thru RHS in the 80s, always featuring Competion (as they were known then) Cams, either the High Energy or Magnums. But I don't know if RHS owned Comp, or vice versa, and I dont know if RHS now owns EQ, or just buys from them.

[@brianp454]

Those look similar to the World Products S/R heads, yet have some significant differences. Perhaps World Products did a deal with EQ to do a larger runner version as a proprietary version?

[@eddiecahall3824]

They're older RHS cylinder heads when they first were available. I have 2 sets untouched still. My favorites are the GM 292 turbo heads which I have those as well. I like them better!

[@jets]

would you sell 1 set

[@eddiecahall3824]

@@jets Yep 1 pair...$3000

[@dz-pg5dy]

@@jets search richard holdner and buy an ls..

[@jets]

@@dz-pg5dy just got one 👍

[@time8533]

They're just like the old Pro top-line heads I've got a set of Pro top-line on a 396 sbc. the original company was pro topline then they sold out to pro action then went to EQ then RHS. if I remember correctly

[@donellmuniz590]

SR Torquers are stock replacement heads for 55-87 SBCs, but not made by EQ. They're either made by Dart or World Products, don't remember which. My current Summit catalog doesn't even list them. I believe it's the same company that makes the iron Sportsman Il's.

[@BobSmith-mg6iz]

World products makes the S/R heads. Dart made the iron eagle.

[@nickstuart2808]

Another great video keep it up!

[@carlballinger844]

they look like the Pro topline heads out of New Zealand, I have a set' 48cc chambers

[@cuttersperformance]

48cc chambers! Super cool!

[@joejones9944]

Wow, 48cc? Got any pics. Would Love to see Those Chambers. What Valves?

[@carlballinger844]

@@joejones9944 had them freshened up years ago, and wrapped in storage, 2.02 and 1.60 valves, angle plug, the chambers are small enough that only a little of the spark plugs stick out, unfortunately I can't reach them with out some help, they were used on a dirt motor, with flat top pistons, made 11.5 compression, on a 352 cid small block chevy( bored .020 over) flat tappet solid , with 4-7 swap cam, (rules), 4412 Holley around 420 hp , iron block iron head( again rules) 22 years ago, the bottom end went on to 535 hp, roller cam , aluminum heads, .030 bore, 4bbl carb, billet main caps, 12.5 domed pistons, since I got out of dirt racing, it got used for a drag car, 10.32 @ 129 mph in the quarter, it's now retired for a 406 Dart sbchevy @ 650hp

[@1badamc]

Guess I should have watched the entire vid before my previous comment lol.. I watched the first minute then skipped to the flow numbers. I thought this was a EQ 180 vs Dart 180 vs vortec.. as you stated in the vid they are 220cc. My first thoughts is they were an old cheater head with a cover up. Awesome score man!

[@philricke8372]

Have you seen or played with the EQ CC200A casting? 200 runner 49cc. The port floor ramps up immediately after the port entry and is a constant curve mimicking a tear drop cut in half. I think Pro-Topline and RHS tried this port. The racers said they didn't perform great at high rpm but were pretty good at lower rpm.

[@cuttersperformance]

These castings actually has that ramped floor, very unusual looking but it seems to keep the port velocity high. Hint hint: im going to be using these heads on a 388 stroker and dynoing it, should be fun!

[@philricke8372]

@@cuttersperformance I wasn't quite sure about the port design of the EQ head you reviewed because I didn't hear you talk about it. However, I thought it might be the same port because it was so unusual that the flow numbers would have to be way different than the usual port design. Around 1.75" into the port the floor is .562" thick because they used the mold of the regular casting on the outside leaving a massive amount of cast iron on the floor. Crazy

[@cuttersperformance]

@@philricke8372 i will be sure to get some better shots of the floor in a upcoming video! Id love to find some more of these heads

[@philricke8372]

@@cuttersperformance they'd probably perform best with a low-mid rise intake due to the port angle. A high rise would slam air/fuel onto the floor but who knows, that could be good? I've been wrong about many things I thought was right.

[@philricke8372]

@@cuttersperformance name your price on the set I have. They only had a couple nights of racing on them since new and dropped a valve. I repaired the cylinder. The original guides are still snug and straight.

[@randysummerhays4168]

I've been getting my hands greasy since 69 and I just realized I need some rubber gloves

[@hillbillysdime7000]

These are a bad ass set of heads that I think have been overlooked and under rated and for whatever reason they are extremely hard to find.

[@stevedriver1476]

You can buy these anywhere,EQ sell them through dealers $450 for bare castings. Brodix arent much more for blanks. Steve in Australia. Engine Quest Performance Small Block Chevrolet cylinder heads. 220cc Intake Runners - New Bare cast iron cylinder heads For Max street performance, Oval Track, Drag Race Best suited for 383-400 running 3.500-8.000 rpm range Designed for more torque across mid-range Excellent short track power and throttle response These prices are current. Priced each (for one cylinder head) Part # Your Cost each Description Guide I.D. Intake Port Width Intake Port Height Exhaust Port Width Exhaust Port Height CC220BA $471.25 2.02/1.60 64cc AP 11/32" 1.23" 2.23" 1.35" 1.35" CC220BS $471.25 2.02/1.60 64cc SP 11/32" 1.23" 2.23" 1.35" 1.35" CC220DA $455.30 2.02/1.60 72cc AP 11/32" 1.23" 2.23" 1.35" 1.35" CC220DS $455.30 2.02/1.60 72cc SP 11/32" 1.23" 2.23" 1.35" 1.35" N/A no longer avaialble AP = angle plug SP = straight plug

[@cuttersperformance]

I talked to EQ today and these heads are no longer available Im Told They were casted years ago in New Zealand and they are a RHS/EQ head Very well made and great flowing head There might be some other variation of it still being make by other companies, but according to EQ its not available

[@nostromoclyde3112]

Pbm sells these still in their catalog. I believe they have a 160-170cc runner

[@dianedonovan4073]

Competitionproducts part no. ENQCH350iK18 / 178cc/76 straight Plug Race Ready / valve spring upgrade / 979.95pr.

[@marcusmaddenov2451]

These heads are Engine Quest and available from Summit racing

[@zrsnopro97]

Can’t wait for the supercharger content. Always wondered what power mine would make has vortecs on a stock 350 bottom end with a procharger d1sc strapped to it.

[@cuttersperformance]

Yeah man! Should be fun Haha boost is always fun

[@mikeweiser6020]

Great find at 76cc chamber, spend your money buying pistons to get the quench right. Then you will have spent too much.

[@63Imp283]

Getting a free set of 305 Vortec for my 283 can't wait for your vid!

[@peggyparrow2059]

These are from Racing Heads service, i think, which was in tennesee i dont know if they are still in business !

[@thereluctantgearhead4544]

They are based out of New Zealand I'm pretty sure. I had a pair of their bigblock heads. Real nice quality.

[@cuttersperformance]

Yeah I think originally, and your right very nice quality Im going to contact RHS as it seems they may have some info on these heads

[@shitbox7413]

Not sure where they originated but EQ is located in Las Vegas now...

[@thereluctantgearhead4544]

Pro Action/Pro Topline was another company casting heads in New Zealand, could be affiliated. RHS bought them out too. I have a pair of the 220cc Pro Topline heads, they look real simular to those.

[@shitbox7413]

@@thereluctantgearhead4544 Yes Pro Topline was from down under, I couldn’t say their name to save my life earlier. 😄👍🏻

[@kenmaylin4744]

@@thereluctantgearhead4544 I have the pro top-line 180s and I was thinking they look real similar to

[@shootermcgavin2819]

advance cumbustion chamber design, badass

[@jon-christiankaczor5384]

You gotta chase that T casted into the head. Id say those were world products sportsman 2 heads or knockoffs but those had a cf for central foundry so you gotta chase the T thats the ticket thats the foundry that casted them

[@1Also]

SKC OIO FNO AGL When are you doing the ultimate 307ci SBC with TPI build? Subbed

[@nelloagostini4389]

Hello Pat, I have found a pair of 292 turbo heads I know absolutely nothing about them. What's your thoughts? guy asking $1500 apparently ready to go.

[@donellmuniz590]

Pat, have you tested the Summit house brand Vortec-style heads? I wondered how they compare to production Vortecs, not only in flow, but casting quality, deck thickness, hardware, etc. They're only $727 a pair, assembled! I also wonder who actually produces them.

[@cuttersperformance]

I have not played with the summit heads. Guys keep asking so I maybhabe to order up a set

[@fordman573]

The only 350r I ever had was a buick

[@zAvAvAz]

the part numbers i remember as i have a downloaded EQ catalog in one of the old computers at my momma's :o) pertain to runner size, intake style , and valve cover style, there were mixes and matches of every kind. So a regular intake for a vortec head, with center bolt valve covers and a different runner size or a head with both style valve covers , large runner and valve, with vortec intake, or even both style intakes. like i said and there were imca or ursa or whatever heads for racers that meet requirements for different rules, so they were in the game of a plethora of multi configuration, there was talk online and everyone would say yeah they are great if you want iron, why get iron when you could have aluminum. etc. They are great heads i know, and i used to study the flowbenches on them with other heads, they just didn't get on top soon enough, people were afraid to try anything different than dart or gm. When EQ is really better in my opinion. They are still out there. Wish someone would get the casting and equipment and start producing the tons out of them. RHS makes them today maybe ask them.

[@racerd9669]

With a 50cc larger runner I would hope they out flow the Vortec, But the flow numbers that make power are at Mid lift not high lift.

[@cuttersperformance]

Yeah exactly! Did you see how good the mid lift was for a larger runner head, I was impressed for a as cast head I just put it up against the vortecs for comparison sake Cheers!

[@racerd9669]

@@cuttersperformance I agree, but the problem is that a 220cc runner is to large for anything but a 406 engine. I good head should flow 300cfm at .400 lift.

[@DaveR-lo6hq]

Look up PORCUPINE SBC heads, think they made 25 pairs back in the 1950’s. I have a 68-302 and the Camelbacks are sad, L-2210 with some of dome removed, need good budget head info, I will be buzzing 8k rpm’s. Ran in Hawaii in 1977, 13.05 in 3rd at 7,500rpm’s with 4:10’s and still pullin! Will start rebuild this year. Purchased 31 Aug 76. For $1900

[@jordanbest3926]

The numbers seem to be in line with RHS Pro 220 heads

[@cuttersperformance]

I'm going to send RHS a email and see whats up Cheers!

[@johnhughes738]

From what I understand your right it is 225cc they are a branch from racing. Head service google the part numbers that you read off and small block chevy heads it will take you to engine quest web site but from what I read on some of the comments it is a version off RHS. I hope this helps they are great looking heads

[@rkinni]

I was wondering if they were RHS based off the serial #.

[@approachingtarget.4503]

They are! Over the past 25 yrs...the cast head market is just copies of some of the original designs and even cast in the same factory. Dart was one of the original companies to do this. Shortly after that...world broke apart from dart. And then 20 other companies got into the game. RHS, profiller, trick flow, blue print, top line, and brodix have all produced these heads. EQ became a conglomerate of all these into one. They just change names as businesses buy them out. What you have are the original variant of the dart 220 head they used for the entire dart line. 180, sportman II, 220, 225, and later for the pro 1 235 head. When world split with dart. They took the 180, 200, 225 head designation with them. Even the merlin bbc w exhaust port varient too. Pro top line and RHS where short lived campanies while they sold these. About 5 years for each. After 2015...they out sourced production of EQ heads once again and are now low end castings. The small block mopar greatly benefited from EQ heads. The casting are really thick and dont crack as easy as factory.

[@thereluctantgearhead4544]

Same head casting.

[@BrianSEPT11]

Looks like that head will increase your compression ratio too

[@joeschlotthauer840]

*"T" might be for Tonawanda Engine, located in Buffalo New York. They make the LT1 and the LT4...*

[@troywatson4686]

These are Engine Quest cylinder heads

[@danamcintyre3565]

A great street head as you showed a big flow means high RPMs. To get the performance ?

[@mikemansfield270]

They are racing head service heads and very good and rare heads!

[@paulmbylbie6065]

Engine quest.... Powers in the chamber

[@joejones9944]

Exactly

[@jon-christiankaczor5384]

Typically you can track the heads by the foundary hallmark

[@brianbloom1799]

Have you ever flow tested a old set 67 canadian power packs, Old cast there off a 283/327,

[@pacman3908]

There a great street head for the price also

[@driverjamescopeland]

Sub-6k RPM 427 SBC pump gas build? These would be killer.

[@hoost3056]

Look up the RHS cast iron 220cc heads on Summit. I think these are these heads.

[@cuttersperformance]

In going to email RHS, I think they might have some info on these

[@beller5853]

Live and breath RHS!

[@philricke8372]

If anyone is interested in a set of these heads that are 200cc runner with 49cc chamber contact me. They have minor repair work on 1 cylinder and only have a couple nights of racing on them since new so the guides are in perfect condition. They are finished and ready for assembly.

[@cuttersperformance]

Phil has a nice set if anyone is looking! I will be using a similar set on an upcoming 388 stroker build, if anyone wants to built a similar combo

[@timhenry2028]

? Can you get the EQ chamber down to 64 cc. And if so how much would you have to take off to be safe. I run the 062 with 0.16 Exhaust. No port work works great. I also have a set of 906 with big valves. Doesn't have port work. Except just at the opening of the intake runner just rounded the outer edge. My ? Is would I benefit using the bigger value heads over the stock heads with o.16 Exhaust.

[@cuttersperformance]

Check my video on 2.02 vortecs vs stock, will answer your questions And you might be able to get them down to 64 but if the block is deck already to your going to have issues with intake alignment for sure

[@thomasdickinson6229]

Those heads look like a set of heads I have they are World products Sportsman series 2 heads

[@TripAMD]

I always thought they were junk. Only because my old boss was a cheap ass, and these are the heads he put on everybody's budget 383s. I remember it as "towomba" but i cant remember too much about them.. After seeing this I wish I would've kept some around now.

[@cuttersperformance]

Wow thats amazing! Haha you could build a hell of a 383 with these heads and a decent cam

[@1Also]

SKC OIO FNO AGL When are you doing the ultimate 307ci SBC with TPI build?

[@dennisgray7509]

Compare the iron eagles in the same size as the EQ! My dart 220 flow great

[@cuttersperformance]

Its was just some recent flow data I had, no meant to be a shoot out but just more of a comparison. Dart makes some great heads but I did expect abit better flow out of the 180s. Maybe I will have to try to get my hands on a set of 220s. Would be a interesting comparison 🤔 Cheers!

[@thereluctantgearhead4544]

The Dart 220s flow much better than the 180s. I believe they are in the high 280cfm range stock.

[@rickcrotts6673]

Used to get these for a song until you did this video lol

[@nickdouglass4833]

Sounds like you got a set of engine, quest, ported heads

[@darrenshaw923]

Volume on point ! / Thanx Man

[@cuttersperformance]

Haha I cranked it up for you man!

[@darrenshaw923]

@@cuttersperformance It Freakin Worked ! / Keep em coming / Love me sum small bloc Chevy ! / Thank You

[@davidreed6070]

I believe those heads were cast by World Products,,,good heads for hot street

[@cuttersperformance]

Thanks I will send them a email and see Cheers!

[@tomrose6292]

They look a lot like WP HEADS.tall oil rail for valve cover

[@markforrestsr2242]

Can you do a video on the best after market sbc heads, that we're available in 1978? I've got a guy claiming it wasn't possible to flow 250 or higher in 87! I'm saying you could?

[@dianedonovan4073]

World Products Sportsmans II from late 1980"s ported and flowed at Jensen's performance in PA. shop came in @ 266 cfm intake / exhaust?. Ran some high 9's on good air @ Numedia Raceway in chevy Vega 2700lbs .

[@neilmerrifield9633]

Must be something EQ discontinued, I was looking on Ebay for these heads. Looks like EQ doesn't make any SBC heads with 2.02/1.60 valves. They make some stock replacement vortecs, even 87-95 hybrid with vortec chambers. The only thing I found that was similar was EQ 350i SBC 178cc S/P 76 Cc. It seems all EQ heads only use 1.94/1.50 valves in the SBC flavor. There was also some IMCA USRA heads by EQ, couldn't see any #s under valve cover but had SR-T cast where T is cast in these heads and CH350I stamp on end. Still only with 1.94/1.50 valves. If you do find out where we could get some of these heads, please let us know? Thanks, very interesting.

[@cuttersperformance]

Yeah man I've sent some emails out today and I will see what I get back Like I said Engine quest (EQ) doesn't even know haha

[@roberthaslar5288]

What's the casting numbers and the date code numbers.They look like 1962 to 1967 327 hypo square port exhaust.

[@chevyfan82]

Those EQ heads are interesting

[@stevedriver1476]

CHI Australian heads and Duggan Heads are the best in the world also Yella Terra Aussie Heads,,but not cheap.... We make good stuff.. We run Twin Cam Hemi Top Fuel cars and 3 valve Top Fuel and Nitro Cars.steve in Australia.. Engine Quest Performance Small Block Chevrolet cylinder heads. 220cc Intake Runners - New Bare cast iron cylinder heads For Max street performance, Oval Track, Drag Race Best suited for 383-400 running 3.500-8.000 rpm range Designed for more torque across mid-range Excellent short track power and throttle response These prices are current. Priced each (for one cylinder head) Part # Your Cost each Description Guide I.D. Intake Port Width Intake Port Height Exhaust Port Width Exhaust Port Height CC220BA $471.25 2.02/1.60 64cc AP 11/32" 1.23" 2.23" 1.35" 1.35" CC220BS $471.25 2.02/1.60 64cc SP 11/32" 1.23" 2.23" 1.35" 1.35" CC220DA $455.30 2.02/1.60 72cc AP 11/32" 1.23" 2.23" 1.35" 1.35" CC220DS $455.30 2.02/1.60 72cc SP 11/32" 1.23" 2.23" 1.35" 1.35" N/A no longer avaialble AP = angle plug SP = straight plug

[@timlink9298]

Kool

[@craigsixta983]

Check with motorville. I think they sell them.

[@stevedriver1476]

EQ has dealers on their site or GOOGLE the part number Engine Quest Performance Small Block Chevrolet cylinder heads. 220cc Intake Runners - New Bare cast iron cylinder heads For Max street performance, Oval Track, Drag Race Best suited for 383-400 running 3.500-8.000 rpm range Designed for more torque across mid-range Excellent short track power and throttle response These prices are current. Priced each (for one cylinder head) Part # Your Cost each Description Guide I.D. Intake Port Width Intake Port Height Exhaust Port Width Exhaust Port Height CC220BA $471.25 2.02/1.60 64cc AP 11/32" 1.23" 2.23" 1.35" 1.35" CC220BS $471.25 2.02/1.60 64cc SP 11/32" 1.23" 2.23" 1.35" 1.35" CC220DA $455.30 2.02/1.60 72cc AP 11/32" 1.23" 2.23" 1.35" 1.35" CC220DS $455.30 2.02/1.60 72cc SP 11/32" 1.23" 2.23" 1.35" 1.35" N/A no longer avaialble AP = angle plug SP = straight plug

[@clint4004]

Have you run the Summit casting's for flow?

[@woodrowdelozier1]

I see a new complete set for 850.00 and a bare set on ebay for 720.00 bare says they are IMCA heads

[@cuttersperformance]

Yeah they are, a old new Zealand made head. Eq RHS combo

[@bloodhawk6252]

Would say probably came from pro topline

[@SOU6900]

I personally want to see some dyno numbers comparing these heads.

[@cuttersperformance]

I have a video series coming up! A engine build with the subscribers help The choices will be made by you guys over what parts are used and we will hit the dyno when its done! Should be a good time!

[@SOU6900]

@@cuttersperformance 😆 Cool, though I'd probably have to sit and watch from the sidelines in a sense. I'm no good at picking parts which is why I've not pulled the trigger on building a spare 350 for my 86 GMC K2500 or a spare 454 for my 85 Chevy C30 dually. All I know to go with for sure in both cases is a dual plain intake that will work with the Q-Jets I have on both engines. Gonna be an interesting series to see though.

[@bcracing204]

Entry level Racing Head service they are from the lat 1980s to mid 1990s

[@robtdougherty]

Are they cast 220 in the floor of the intake ports? 2:25 - would match your cc'ing.

[@cuttersperformance]

Yeah cast 220 cc no porting

[@robtdougherty]

@@cuttersperformance - No, i mean in the video, at 2:25 it looks like the number 220 is cast into the floor of the port...

[@cuttersperformance]

Wow I see what you mean Looking at them in person you can just see a casting bump there but when you see it on the video it looks like 220 Good eyes man!

[@robertheeter9440]

@@cuttersperformance I know about these heads but I would rather talk/text on messenger or email. Just not on a public forum 🤙

[@cuttersperformance]

@@robertheeter9440 email me at [e-mail]

[@joecappo6480]

Those EQ heads in cast iron seem to be available through www.highvelocityheads.com in a 222cc CNC ported version.

[@elinino5275]

$1,100 each!

[@Connor4x4]

Im gonna have to find a pair of these

[@robertries7774]

Those are Engine Quest heads and are out of Las Vegas.

[@pacman3908]

The old eqs were made in Australia the new ones made in china now. The ausie heads flo better we circle trackers love them

[@cuttersperformance]

I can see why! They flow great as cast Thanks brother!