WHY TUNNEL RAMS RULE-FULL DYNO RESULTS

565 BBC BUILD & DYNO SESSION, SUP VIC VS WILSON TUNNEL RAM. SINGLE 1150 DOMINATOR vs DUAL 1050s. 565 BBC Build & Dyno Test. Run NA on Pump gas, on Q16, with 200 & 250-hp NX Nitrous, then with dual-quad, Tunnel Ram. Who wants 1,100+ hp with nitrous? How Much can we make on the motor? It's only 10.5:1 Compression, but it has a big cam!

[@steveklemme2945]

I was waiting for nitrous on the tunnel ram. 🤔

[@richardholdener1727]

IKR

[@rickeydriskill1096]

I wanted to see that as well

[@danmyers9372]

Ditto!

[@calvinevans8305]

Yes two plates, double your pleasure , double your fun!

[@kwik440]

It's so funny, people are brainwashed that tunnel rams only work at like 7000 RPMS. NOT ! they make insane low end Torque and really good power. Back to the Richard Holdener >>theory.. Runner length, runner length,runner length.. Thanks again for testing your ass off : )

[@LewpyDrewpy714]

Yep. At Low RPM too 7500 rpm. right off idel tunnel rams rock. If you muffler the motor enough you can hear a Big Block tunnel ram consuming air. Nice build.

[@stephenmitchell3569]

Everything is so improved from 660s Holleys and tunnel rams in late 60s-70s. How many of old timers wash down cylinder walls with stuck float. Or live down in flat land go big car show in mountains and ooops running rich was life with allitude or changing weather fronts. Of course most of us were running hi-rev 327 or not many times hi-rev 409s. Then God Bless America the Real Big Block Chevy L-88 and look at us now. Heck you can by adjustable pushrod guides....yes let my Hot Rod issues run out in 1987. No more cutting PR guides and tack welding. Thanks again finishing my last Hot Rod at 67. Nope not a show car but a hang it in the Wind drive to Kroger. Ordering a Merlin 5'" or 4.5" bore. We'll never would dreamed of aluminum block and spending $10,000 on block and funny oil pan. I think I need a 2800 lb/8.99 sec quarter mile to drive to Kroger....how many times....until one of us can't be repaired..lol!

[@MrTheHillfolk]

@@stephenmitchell3569 good deal man , you deserve it ,you've put in your time. And yes prices are crazy , but you only live once so I say go for it. One question : Do you think that will be enough power ? If you even hesitate for a split second to answer , you need about another 200hp more than you thought 😅

[@outlawofga]

Amen... I've run them for years...

[@sarcastomimic2683]

This channel is so addictive! So many combos, so little time.

[@HighlanderNorth1]

🤔Yeah, but he made a mistake recommending Chevy big blocks as opposed to ANY Ford engine, which would obviously be MUCH better..... Now, if you're already in possession of(burdened with) a big block Chevy, and you have no money to do the right thing and buy a whole new Ford engine, I'd recommend to at least buy a can of Ford blue engine paint and coat your Chevy engine with it. That'll guarantee you an additional 50hp and 80ft/lbs. Now start saving $$$, and in no time you'll be able to replace your 502ci GMPP engine with a stock 2.3L Ford Lima 4cyl engine from a 1977 Pinto(or 1986 SVO Mustang). That way you'll be replacing your semi-weak 500hp 502ci GMPP engine with the stock 775hp Ford Pinto 4cyl. Remember to tell your sad Mopar buddies that they too can join the "winning" blue oval team! "Welcome to the power zone, welcome to Ford country"! 😀

[@fascistpedant758]

I wonder if that cam is too big for my RV. The tunnel ram would look cool sticking out between the seats. LOL

[@ronwest7930]

I think everyone wants to hear what these engines sound like on the Dyno.

[@JayBeezy31]

Go to samtech. Every day we do this. March 2020 hot rod magazine cover. 2019 engine masters WINNER. I will answer any questions you may have. I'm 42, and just graduated. Call the school, ask for J.R. tell him Jerry told you to call.

[@lb9gta307]

You're not wrong, Ron. You're not wrong.

[@jaydunbar7538]

He's aware, and also said several times why its not possible. These tests were mostly done for magazines so it was never recorded, and some of them if I'm not mistaken had issues with a software change.

[@crw3673]

Can't wait for you to do a build on the 8.1 big block, the other engine.

[@StickShiftMuscle]

I have an 8.1 580hp 640 torque in my c3 corvette

[@rustysausage69]

Shortblocks are stout, just like any big block chevy. The stock cylinder heads are lacking because they don't allow much porting (thin castings), and the exhaust port is a D shape instead of a full circle. (My LS3 heads actually have a bigger exhaust port than the 8.1 heads, intake valve size is the same). Intakes though, theres 1 carburetor intake manifold available in all of the aftermarket so you're limited to that and MSD LS ignition or EFI (no distributor on em). Parts add up quickly because it doesn't share a single bolt with previous generation big blocks. Junkyard motors are $3K plus, and you're limited to boat guys for a lot of the aftermarket heads/intakes/cams. Boat blocks (mercruiser like I have or etc) are also reverse cooling and truck units aren't. Not very car build-friendly. When they're done, they're stout. Expensive though, earlier generation big blocks will do similar or more power for 1/2 or 2/3 the price of the 8.1.

[@StickShiftMuscle]

@@rustysausage69 My 8.1 has Race Tech Pistons rods etc fully rebuilt .600 lift cam. They make Aluminum Heads for the 8.1 CNC by Raylar. I've owned 8.1 for a long time and they make tons of torque. Tons of HP. Also have the Dart intake carb conversion running a 1000cfm Holley. Makes 580 or so HP and it only cost me 3,000 to build. Got my engine for $500.00 not that expensive to build.

[@crw3673]

@@rustysausage69 thanks for the info

[@richardholdener1727]

nice

[@patrickmontgomery6353]

Ahh. Coffee, Brule, Holdener and big block horsepower. It's going to be a good morning.

[@richardholdener1727]

enjoy

[@VTLIFE-so4dc]

"Ah, Creme Brule?" No, Steve !

[@ChristnThms]

I saw a somewhat similar test done on a SBC many years ago. The goal was a "pretty" motor for a hotrod, with a good torque curve for street use. Conventional wisdom said that the dual plane would work best, but it had a mundane look that the guys didn't want. They tried a couple single planes and a couple EFI setups (this is in the days of the TPI), and then they did the tunnel ram ("knowing" that it wouldn't make a streetable power curve). Of course the tunnel ram had the best power, but it also delivered the best torque everywhere except the very bottom and even then beat everything except the TPI. The guys doing the test (probably HRM or PHR) cautioned that without really good carb tuning, throttle response was going to inevitably be soggy on the TR because of the large plenum. Which (to me) raises the next obvious question for you to test... Let's see a show car quality tunnel ram setup on one of those junkyard LSs you love (one of the small ones, to prove the point). Use whatever carb setup you like, but extra points for uncommon and more extra points for not using exotic stuff that a regular guy would have a hard time accessing. I'm betting that you can beat the 100hp per liter mark, while still delivering a solid torque curve below 4k, on pump gas, and even achieve livable throttle response.

[@deanstevenson6527]

Christian Swensen : This is the Dominator version of the almost Port on Port Tunnel Ram Independent Runner systems. Its reduced duty cycle and reduced air speed that gains torque everywhere without hurting the top end power. Each runner is serving only the needs of one intake valve. Look at the peak power rpm come back 500 rpm on the 568. The Goal is the same or more power....with less revs. Hi Carb Diet...Rulze!

[@daleostrom3613]

A hotrod with a SBC and your NOT looking for mundane. Keep hood shut.

[@GIGABACHI]

@@bigboreracing356 Because "stupid units" make your dinosaur cast iron lump sound more efficient when it truly isn't ? A 283ci SBC @ 300hp = 1.060hp per ci. 283ci=4.637 litres, a little bit of Math and that thing is making ONLY 65HP per Litre. The engine on this video on it's last form made 101.965 hp per Litre. Not bad at all for low compression, 2 valve heads and a heavy valve-train. Any current day "Rice Burner" does close to 75hp per litre w/o a turbo or supercharger. Is called Progress and Innovation.😁 Put down the "Nationalist flavor Kool-Aid" and smell the "World Wide Coffee". There's more to the World than "asthmatic cast iron boat anchors U.S.A made OHV V8's". I bet you had a hissy fit when he uploaded the recent Honda B16 video . . . OH, THE HUMANITY 🙄🤣 Careful there, it may make you doubt your sexuality if you watch it. 😏

[@ChristnThms]

@@GIGABACHI Yeah... but no. Those cast iron boat anchors you refer to are still some of the highest BSFC performers in the world, and when outright power is required the entire world still bows at the feet of us yanks. That said, there's a reason I went with the 100hp per 1 liter mark. Those 4.8L LS engines routinely eclipse the 400hp mark, and good builds are closer to the 450hp mark. I therefore figured that 480hp from a 4.8L or 530hp out of a 5.3L would be more worth bragging about. Those numbers would normally require a power adder in order to achieve anything resembling a streetable torque curve. But that's the beauty of the tunnel ram. When set up right, it allows the revs, and still delivers decent torque across a stupidly wide rpm band.

[@MrTheHillfolk]

@@GIGABACHI The wife's pedestrian 2014 Jetta with a 1.8 is rated at 170. Not bad on the HP per cc if ya ask me , and like I said it's supposed to be an average Joe on the street. That's what 40-50 years of innovation has done, it's pretty cool. The Glory days that I wasn't around for sure looked fun, but how common was it to walk in a dealer and get a new 700+hp car with a warranty? The muscle is here now actually.

[@stevenbrianmoody8874]

I think you should test different types of ls coils to see if it really makes a difference in power.

[@HorsepowerHeadquarters454]

Next you have to build an aluminum rodded 632 with one 1150 on it and solid roller motor and show my hater that a 1000 hp 632 is to easy. Mine is a 638 but yah...👍👍 oh I meant a N/A 1000hp. Love the vids

[@richardholdener1727]

extra cubes make it easier for sure

[@ktmr8]

Arhhh you beat me to my comment in your conclusion Richard!... “ needs two kits right?... “

[@richardholdener1727]

they all do

[@calvinevans8305]

Yes, double down on the oxidizer.

[@dalegroves1918]

Big Blocks are Awesome, we knew it all the time. I actually built this same engine combo years ago but with compression, it held the track record in a mud truck for two years. Great combo Richard.

[@Richard-gy1fo]

I grew up with the old offenhauser tunnel ram. Had 66 charger 440/4speed/when was 20. Ahh relive the old days

[@CharlieBrown-pb9xn]

Rich daddy

[@tomnekuda3818]

Every Offenhauser I've ever used surprised me for power and drivability. Are they still in business?

[@Richard-gy1fo]

@@tomnekuda3818 i dont know.

[@Richard-gy1fo]

@@CharlieBrown-pb9xn wasnt rich but could buy those cars in the 80s for cheap. Wasnt pretty just fast an fun. You seriously could get them cheap. Wish id held onto them.

[@tomnekuda3818]

@@Richard-gy1fo Amen!

[@ts302]

Sweet TR motor. Easy 1,000 HP NA engine with a little more compression. The torque curve seemed a little peaky and not as broad as I would have anticipated. Would header tuning broaden that torque curve? Thank you.

[@richardholdener1727]

it just looks like that because of the scale

[@needmetal3221]

When do these things blow up? Will it idle with the low comp pistons and all that overlap? Another great video btw.

[@hoost3056]

With the size it'll be raggedy but dull sounding, like a typical nitrous specific race engine.

[@timothybayliss6680]

The lower compression and titanic sized camshaft means it something like.this idles with less than 10" of mamifold vacuum. If you were going to race it, you wouldn't care, you would just get it to idle where you can live with. Drone is probably the right word to describe what it would sound like.

[@escuelaviejafarms]

I miss my old tunnel ram. Had one on a 454 in an a 78 Chevy pickup, it was known at Temple Academy Dragway as the "eBay truck" because I got all my parts off eBay, LOL!

[@toddgirard391]

The only improvement I can’t say on all of your builds is that you don’t give a cost for the amount of power. Hey

[@767dag]

Bought by the blood of Jesus Jesus Agree , Is this a 15k engine ?

[@sillyguy9828]

It costs.

[@opieg7333]

Price is a bit of a loaded question. There are parts costs and there are labor costs. They change out parts to test effects so the price is not "set" and changes throughout the video and really doesn't include labor. It seems like some of the stuff being tested is shelf stock, so, they are not "buying" the parts at retail. Some of those costs like engine block machining vary based on location. I think the focus here, which I personally appreciate, is the details on what impacts changes have and why. You want 800hp - you are talking five figures in parts. How high into 5 figures depends on how much power and how long you want it to last. You can look up all the build parts to get a sense if you really must know costs. But nothing mentioned is considered cheap parts.

[@merit2584]

@@767dag More than that. The heads are $3,667 for a pair from Summit. The dominators are $2400 for the pair. $450+ for the intake, another $450+ for cam, $700 lifters, $124+ for pushrods...The block is $2,680, pistons are almost $1k, rods are $1200, rockers are at least $700 with a girdle. 1700+ if they're shaft mount. MINIMUM $1k crankshaft. More like $2k+. Now add bearings, machining, gaskets (head gaskets are $200 alone) balancing. You're at $15k just in parts without breakin a sweat. Still need ARP stud kit, timing chain, valve covers, balancer, might as well put a vaccum pump on it for $700-900, etc. Doesn't take long to add up. I was pricing out a 632 for my Camaro and came to the conclusion that a professional engine builder was a more economical choice at that price/power level. They get parts at better prices and can offer dyno tuning before it leaves their shop. Plug n' play for me. For example, I'm looking at similar power N/A 632 that should make north of 900 for $12k and change. Built for a whole lot of nitrous, assembled and dyno tuned.

[@Silkmaster4200]

Are they a way build a Big Block V8 have the same torque as a diesel V8 ? Meaning way more torque than horsepower? Example 670hp 1050Ibs of torque?

[@richardholdener1727]

YES WITH BOOST

[@johnparrish9215]

Now you have to do a Tunnel Ram with Twin Turbos.......lol If nothing else, it would look Killer.

[@sd767633]

and the nox to boot or boom.... hehee

[@2000freefuel]

more like Turbos on top of a Pro charger.

[@richardholdener1727]

yes it would

[@johnparrish9215]

@@richardholdener1727 I'm thinking abut what kind of monumental pain it would be to tune two blow through carbs.

[@2000freefuel]

is there an easy way to bypass a procharger?

[@mrbigg7255]

Twin turbo, tunnel ram with two blow through carbs.

[@dbjunior1238]

30lbs of boost lol

[@GreatLakesLogger]

Well, imagine what a mere 10lbs would do!

[@dbjunior1238]

@@GreatLakesLogger what you don't want to see 2500+hp

[@rvdeddrift]

Good gravey... My heart has been had!

[@fastone371]

Whats wrong with FI instead of blow throughs??

[@71stang94]

Great video interesting like always, A wild 351 Cleveland upgrade but still able to run on 91-93 pump gas would be highly interesting also

[@markmccarty9793]

Maybe stroke it to 393? The block is the limiting factor! The rod stroke ratio comes into question! A Windsor is the way to go, the rod/stroke ratio is better, but that 3" nain bearing and that heavy crankshaft comes into question at high rpm! But we turned a stock stroke Windsor to 6900 on a regular basis!

[@rickybobby0314]

What I think is that you should put the whole parts list. That way someone can make an awesome motor just like you did. This motor has to sound awesome in person!!!! I would love to build one exactly like this one👍👍

[@jarmominkkinen9409]

Have littel CBB 461 dyno tested.1100hk 845 lbs.Okej Have Procharger F2 Efi E85.Only have 12 psi boost..Thise Engine i have in Camaro68 25.4 Chassi.Weery Nice car.. (Abrozzi Aut handels 2200+ HP.)

[@mrkellz6356]

Ok. Now show us a non lt or ls sbc with a tunnel ram please😁

[@richardholdener1727]

I have those SBC and Ford

[@mrkellz6356]

@@richardholdener1727 sounds like you need a bedroom by the dyno room and get give your subscribers some more of your awesome videos🤔

[@markmccarty9793]

I must add, I have the greatest admiration for him! I occasionally text him for advice on cheap combinations! But, how long will it hold up on a weekly basis? Raced Windsor based Fords for 5 years with no problems! These guys have no problems hitting on til it s!@ts the bed! But, it seems as if you have it tuned right cheap parts will hold up well beyond your expectations! Thanks Eric!!

[@rickstrandberg6398]

I'm really interested in the ford crate 572, could you run one with the supplied single 4 barrel, then an injection setup, and finale with a tunnel ram dual MASSIVE carbs! Pretty please Richard?

[@AdventureswithBigJohn]

I have a very unique challenge for you. Find an Offenhauser dual quad intake and put a set of Holley 660 center squirters on a 468 or 496 solid roller 12:1-13:1 and do some pulls to see what kind of power that setup will make.

[@darrylb5247]

At best 10 MPG but u do get great Torque and Power. Great when the Tunnel Ram fits with no Hood Mods. Of course Chrome Ram-Air Scoops look good too out in the SUN! :P

[@ChicagoRob2]

13:1 pistons would be frosting on the cake

[@jeffrey4547]

i got a stroked 454 with steel crank heavy rods crate engine with 6000 miles on it for free with the heavy duty 400 turbo plus a tunnel ram set up and a stroked 454 with trans with 38,000 miles on it and a few more engines a bunch of cars and trucks they even paid me to take it all 2 first gen camaro's and 2 second gen camaro's one 79 short box all factory 400 sb 400 turbo in mint condition with very low miles

[@marcstlaurent3719]

When you have a BBC with nice alloy heads and some nice valve covers you never tire of opening the hood even in the age of turbo LS motors , it’s like a gal having a big pair of knockers she’s proud of that never sag with age . Only thing better is the same BBC with a couple hairdryers feeding them .

[@exploranator]

Was it a problem with two adjacent-firing cylinders on the same carb, specifically cylinders 5 and 7? Those, to me, would be the first culprits as they draw from two nearby cylinders and the same carburetor.

[@lancelanphier9509]

Awesome video, as usual! ....but did I miss something? (I just woke up so maybe I'm just tired...lol) I don't recall seeing nitrous plates installed on the tunnel ram?

[@JC-gw3yo]

Good job as usual Richard, but a big block Chevy is a truck engine, and obviously a good truck engine. Be nice to see the same on a 385 Big Block Ford by Kaase

[@donbrutcher4501]

Have seen tunnel ram top plates with the carbs rotated about 20 deg to better align the throttle bores to the ports. When one cylinder runs way lean like that does another one run rich?

[@richardholdener1727]

there is a lot to play with

[@unclesquirrel6951]

Personally I blame squirrels

[@funfun8095]

👍

[@deanstevenson6527]

John Woodworth : They can lob winter feed down the Tunnel Ram faster than a family of Rats up a Drain pipe.

[@unclesquirrel6951]

Dean Stevenson 😂

[@Moparmaga-1]

Oh here we go again, it's NOT THE SQUIRRELS GUY 😆

[@TurboJohn74]

Now I know why Dave swears by the tunnel ram. Quite impressive!

[@MrBlackbutang]

That’s what I like about you Richard you contradict yourself in the same video. That’s just foolish.

[@superkillr]

I don't know if you'll see this, but there is a mistake in the video. YOu used the FORD 557 Tunnel ram results.

[@UnityMotorSportsGarage]

Tunnel Rams often get a bad rap! I have found that they can be tuned to run great on the street!! The power increase is amazing compared to a single four barrel... My 393w makes over 600hp and I drive it almost daily!!!

[@whataboutbob7967]

Why can I only hit thumbs ups once?

[@ryanhines719]

Do you all keep all these intakes? lol Working on an EFI gen vi big block and plan on using the Dart tunnel ram with a custom ram air top

[@sirjhonson8218]

I like all engines 1970`s Mopar , all Chevy and Ford. . I also like Honda 4 bangers.

[@tomnekuda3818]

Really great power thanks to careful parts selection, tuning, and paying homage to the Nitrous Gods.......thankfully, the Gods did not require a sacrifice....i.e. rod, piston, who knows? Good upload. The fast-moving air column in a well-designed tunnel ram is 'Magic'!

[@rodneyf.9595]

Thanks guys great video , I have been building engines for many years and would really like to try out an engine like this. I think the tunnel ram is a great choice even on small blocks . Thanks for your time and consideration on this subject 👍

[@ronchang9791]

I can confirm that that actually is an ancient chinese proverb. My grandfather told it to me when I was a boy.

[@CZ-kz7ug]

Awesome video! Would be cool to see the power curve difference with dual throttle bodies and port fuel injectors on the tunnel ram.

[@richardholdener1727]

same curve-its created by the tunnel ram

[@aussietaipan8700]

I would like to see a nitrous setup that spans more of the RPM range. Going from 2.0 to 2.5 increases the power and torgue but at a higher RPM range. It would be interesting to have an electronic setup that spans the nitrous needle from say .5 to 2.5 as the RPM increases.

[@homefront3162]

If you ever do 5.7' hemi' again can you do a intake and throttle body test? Sniper vs Truck vs 6.1 Aluminum, Vs Plastic 88,92,95mm throttle bodys plus bigger injectors???

[@richardholdener1727]

i HAVE SRT8 VS MAGNUM VS TRUCK INTAKE VIDEO UP +I BELIEVE-THE SNIPER WILL HURT TORQUE

[@roadrunner1391]

I like to know if you can do 1 pro charger and have a tunnel ram and 2 carbs. I ask you before and you did not get back to me that what i like to do on my corvette......

[@Sleeperdude]

It's crazy how much more power it made with a tunnel ram

[@angelovasilikos7980]

I always loved the look of tunnel rams. But on my poor budget it took to much torque away to be a option when we were young. That was the thought anyways and that’s obviously not the case here! Lol. Question I remember they used to install two smaller carbs when they installed duals. I’m assuming this motor has enough flow and is capable of taking 2 -1150’s?

[@xozindustries7451]

Very similar to my 540, same heads, almost the same size bore and stroke. But I’m running a 650 lift hydraulic with short travel Johnson lifters and a roots blower

[@twinturbo496]

Great Video... do you think you could get the same results with E85 and the same hit of nitrous?

[@richardholdener1727]

maybe so

[@donwalsh7521]

Would really appreciate it if you could do a oval port head shoot out for big block chevy with 4.0 inch stroke hyd roller. From speedmaster to edelbrock to afr.

[@AdventureswithBigJohn]

Always great videos and content been helpful to me many many times!

[@cjbert6790]

Sounds like a great NA street motor, if your gas tank is big enough! Lol

[@erickieffer8440]

I definitely like the search for NA power.

[@fullnoyz7670]

I’m with you! I feel like it takes more skill than just adding boost

[@turbhoeheflin1168]

Sounds like it’s time for a pair of those summit t6 turbos. 😁

[@marcstlaurent3719]

Turbhoe Heflin skip the junky turbos and stick on journal bearing BorgWarner , they are great value and why bolt a hit or miss turbo on a air hungry big block , my 555 makes 1340 to the wheels through a hungry 4l80E with a hydraulic roller with two 69mm Borgs

[@SODAKFORD]

Let’s see a junkyard vortec SBC build next.

[@zAvAvAz]

i am wanting to run a 565 or bigger or smaller bbc or BBP or BBO or BBB short block. How can i make it just a mild street machine power plant and make it run decent at track and a daily driver that i feather the throttle in and have a stand alone fuel and timing management system to get 30 mpg. i want to use oval port AFR heads , a hydraulic roller cam, and colorado hot rod parts real street ram tops on a tunnel ram. Butler performance got 35 mpg with a 565 using a stand alone system and overdrive. So a torque monster is good on 2 and 4 cylinders at a time during the firing order cycle each rpm.

[@richardholdener1727]

35 mpg from a 565-I'd like to see that test

[@joepanciarello5211]

I'm an old guy who never worked with an adjustable air bleed carb. What exactly do they do, and how do you adjust them?

[@richardholdener1727]

they work like jets-but smaller air bleed=more fuel

[@richb419]

Have you tried water/meth injection on pump gas?

[@trdscfjc]

Why doesn't a rec port ls with the Holley hi-ram have those kind of torque gains? It seems it only offers power up top, even on the 408/416 strokers.

[@richardholdener1727]

The LS doesn't have anywhere near this displacement

[@kennybiggs3944]

It would be awesome to put boost on that thing and see what it really makes that would be cool keep up the good work that is good stuff still like to see Want a 283 Chevrolet would do boosted

[@Wormser_mcfrazzleweiner]

Does going from pump gas to Q16 typically require jet changes due to the extra oxygen in the fuel?

[@richardholdener1727]

yes

[@jamest.5001]

Have you done any videos on air/fuel distribution testing with a tunnel? For something like a LS with a EFI tunnel , two throttle bodys, would you think the distribution would be better than stock,

[@richardholdener1727]

should be

[@JesusSaves86AB]

The politically correct term is "AmUrIcAn AsIaN" proverb. Excellent vid as always.

[@richardholdener1727]

the imaginary proverb is from the country China-not the imaginary person

[@Thumper68]

Tunnel ram= faster longer fall of air. Hillborn Injection on the tunnel ram would be cool:)

[@donaldcameron8909]

Damm that was cool like them tunnel's look good on a 327'

[@teamsteamone6110]

Can you run two two-barrel carburetors on a dual quad tunnel ram for Chevy small block making about 425 horse?

[@richardholdener1727]

YES

[@michaelblacktree]

Gotta love those high-tech carb spacers. 😄

[@chrislangdell117]

Haha. Funny. I was actually toying around with the idea of building a 565 and here it is. About the perfect combination. Definitely want the Tunnel Ram. Thinking of a 2 lane black top build or American Graffiti but I want stupid power on leaf springs. Found a killer vintage NHRA manifold. Maybe I will see if Wilson manifolds will port it. 😆 wasn't expecting dual 1050's 😳 Thats kind of sweet.

[@baby-sharkgto4902]

I think that it was the wooden spacers making the power, not the tunnel ram (haha)

[@richardholdener1727]

it was sporting wood!

[@baby-sharkgto4902]

@@richardholdener1727 haha good one!

[@joshuanewell7594]

Direct port vs plate system would be pretty cool

[@timothybayliss6680]

You can see the bosses on the side of the runner for injector or fogger bosses. I can imagine guys with a combination this serious running more than 500 worth of spray.

[@karencrilly1633]

Mr.Holdener, ok i have a 72 impala parked it around the mid 90s no bad reason mom just got a better car and i had a 74 nova at the time so we just parked her.So what i am getting at is motor is aBBC 402 1972 still ran good when parked.Ok ? I need to know if i turn stock crank get it balanced an B Printed along with some new pistons an rods Flat tops of course,bore 60 over could i use the stock heads that came with it?,if i upgrade springs, retainers ect.Not to mention get these factory heads machined an port n polish u know the deal.Use a good tunnel ram intake please help wirh the kind and brand that would best fit this application.On top of that not 1 but 2 DOMINATORS for carbs!!! And what do i need to change fuel set up wise if i want to run c16 or e85, cause i k ow i can't run it on stock fueling system.This is a very emotional and 100% imortant for me to buid.Probably be ladt thing me an my father can do together i 💘 love him so much an he is 80yrs of age an i want us to get it on an done before he pases, he has the last stages of melinoma.So back to the rest of the deal the 402 is bolted up to a Th 400. I just been whatchin you for a good bit you seem to be a very good guy an a smart one.SO PLEASE READ OVER ALL THIS SO I CAN START CRANKEN ON THE DRIVETRAIN.....PLEASE IF YOU CAN NAME THE BRAND OF PARTS AN PRICE FOR THE ITEMS I NEED BASICALLY HOW YOU WOULD GET IT TO 650 TO 700Hp. Thanks an sorry for so long of a message but i don't know any other way to do it or communicate with you. GOD BLESS VERY VERY MUCH. WE LOVE YOU FROM KIPP AN KAREN FROM TAMPA,FLORIDA

[@richardholdener1727]

yes you can use the stock heads, I would not bore the block .060-only as much as it needs, I wouldn't do 2 dominators-that motor wont need it,but Summit Racing has BBC tunnel rams with smaller 4150 carbs that will work well on that motor. no need to balance and blue print the engine, just add a good cam and springs. you will need a good mechanical fuel pump and regulator-Holley has good stuff. good luck with your project-remember-its not the car-its the time you spend with your dad!

[@karencrilly1633]

Reason being that i thought 2 dominators cause i watched your mild to wild 460 build an i believe you went 60 over with flat top pistons, so basically i was going kinda by that that is the Hp i am trying to get 600 t0 650hp at most 700.so maybe i put themild to wild 460 build in the wrong category.Thought it could have gotten me 6 t700 like that build.Thank you so much for talking to me an can i get 600hp out of the 402 the way you answered me the 1st time?God bless Kipp & Karen from Tampa,Fl

[@No1414body]

I wonder about the guys that run the predator carbs on a tunnel ram

[@jimmyj2563]

I had a goal..find a single 4bbl top for a weiand Hi ram No easy task in Australia .. loved the content as usual!! Thanks Richard!

[@richardholdener1727]

You can do it!

[@paullane7489]

Wow, the “other guy” big block Ford out performed the BBC in my opinion. It was close and the Ford has a sizable compression advantage, but the BBC has more cubes, a bigger bore, and more aggressive cam. If you believe the Chevy guy hype, the BBC should have completely destroyed the BBF. The only problem with believing the hype is pretty much every time I’ve seen a BBF and BBC compared apples to apples, the BBF makes more power every time.

[@glennraydorzok4053]

interesting , raises as many questions as answers! Thanks

[@jasonbarrett5709]

On this style combo, how much do you give up using a hydraulic roller cam versus a solid roller cam?

[@richardholdener1727]

I feel a lot

[@Spad68]

Yes , no , yes Loke BB . No not chevy at all . Yes tunnel ram..

[@dddpvt]

onlt only thing that can out run cubic inches is cubic $$$

[@ineedsubspls9760]

what's a good combo to make 1k on a NA big block?

[@bigredracer7848]

218👍's up thanks for taking us all along with you 565 ci bbc made 948 hp 876 torque I use the dart block it's lighter

[@RJZJR1]

should have tried 1250 annular boosters .. big accelerator nozzles... as for nitrous 2 -600hp plates timing at zero to start.. have to watch exhaust temps at engagement.. nice build.

[@RJZJR1]

we built a small 500 cid.single dom. single shark system 600plate, stealth motor cast iron head, a max port victor made 845 /700 . was in a 3300 back half camaro... ran 8.0s 170. big block are so much fun...

[@richardholdener1727]

nice combo

[@claytonblanchard4451]

What is your ring gap that allows you to run a 250 shot without popping the top off of the compression land?

[@richardholdener1727]

.008 per 1 inch of bore

[@terrancewhite6728]

I all of your videos i here you say Ring Gap was done. What should I have my ring gap at for a turbocharged LM7? After pulled apart, the current gap is .025 for top and second ring?

[@richardholdener1727]

I go to .028-.030

[@terrancewhite6728]

@@richardholdener1727 thank you. That is why your well respected, be cause you care about the viewers

[@daviswelborn431]

I’m a novice so don’t kill me. But how on God’s green earth is that motor gonna live 1. Being a big block and having a lot of rotating mass 2 piston speed being well into the 5,000 fpm mark and rpms being at 7400?

[@richardholdener1727]

Guys do this all the time-an a lot higher

[@daviswelborn431]

Richard Holdener oh I’m sure in high dollar strictly drag racing applications no doubt. But how long would it live? Thanks for the reply Rich, just now saw it.

[@floridaroadracerguy]

What is the piston speed at 7400 rpm?

[@GlassTopRX7]

Something well over 5000 fpm.

[@timothybayliss6680]

It's like 5240 ft min. I know that sounds like a lot, and it is, but piston g's is where it's at. An engine with a 54mm stroke running 14,800 rpm (think motorcycle) would have the same piston speed but twice the piston acceleration. You can run into the same thing with diesel engines in tractor pulling. Nearly 5000ft min piston speed with a 6 1/4", 19 lb piston and pin.

[@TommyboyGTP]

Yes please get another nitrous plate for the tunnel ram

[@eliasmelendez1271]

I would love to see this as a ITB setup fuel injected

[@shoominati23]

what happens if you want to run an anti reversion plate with nitrous?

[@chancesisler1269]

Might be crazy but I've been thinking about running a tunnel ram on my SBC with a turbo set up but haven't seen many articles about it. I'm not sure if I want to run 1 blow thru carb or 2. Could you do a video on it sometime?

[@richardholdener1727]

DISTRIBUTION WILL BE AN ISSUE WITH 1 CARB ON A TR

[@chancesisler1269]

@@richardholdener1727 was kinda worried about that. Still debating on using a tunnel ram or a single plane to make it a little similar. I'll make my mind up eventually lol. Thanks for the info

[@hilleryclifford2367]

Hey, Holdener.... Brule doesn't like big block chevys....... He LOVES them! I've been racing/ restoring BBC's for over 30 years now. Power to the people! Keep up the great content brother!

[@shitbox7413]

Pump gas 565 with nitrous, pretty much my dream engine. 👍🏻

[@bcbloc02]

Aww man I just realized you messed this video up!! At 10:27 you used the run file for the 557 Ford not the 565 Chevy! I noticed the graph looked weirdly the same on your latest video. OOPS!

[@mikes9939]

I've commented before about how great these videos are and this one follows the trend. Please keep them coming. And we can't get enough big blocks!!

[@richardharm8860]

What do you think of running a SBF XF-8 Cross Ram....Would the power increase or decrease. Have you ever tested one?

[@richardholdener1727]

not familiar with that

[@richardharm8860]

@@richardholdener1727 I would be happy to send Pics of the intake if you have somewhere I can send them. It is a rare intake for a Ford small block.

[@LewpyDrewpy714]

Yep Big block tunnel ram. If you muffler the exhaust enough you can hear the tunnel ram consumming air. From low rpm too 7500 rpm. Awesome torque gangs. Nice build!