Big Block 400: Part 3/4 Holley Street Dominator Tests

[@318willrun]

Actually, I am kind of glad that "mistake" happened !! Not very often we get to see the "through the mufflers" results! The 400 is a runner, and I am not surprised at all!!

[@JustMoparJoe]

Thanks Tim. Part 4 shows out 👍🏼

[@syzfilms]

Why isn't this channel over 100k subs? I think the TR is the winner with the RPM best for low end street manners.

[@JustMoparJoe]

Thank you for that! I’ve been grinding away for 3 years now. Enjoying the journey.

[@rodneybyrd9516]

I saw some titanium valves and magnesium retainers on Marketplace!!

[@JustMoparJoe]

The good stuff

[@chrisfarley6698]

Had the big block 400 in my 74' Firebird. So much fun. Really miss that car.

[@OldBondoBilly]

The sound of POWER😮😁

[@JustMoparJoe]

Part 4, today! Subscribe, Damnit! 😂

[@OldBondoBilly]

@@JustMoparJoe I dun did, dammit!

[@johnelliott7375]

Great evening to you and Ed, I hope that you have a great weekend.

[@JustMoparJoe]

Thanks, you too!

[@cjm5002]

What I am really stunned by is how late that torque kicks in vs a 440's. My uncle had a really fine tuned stock 440 .30 over, with the exception of heads, done exactly like your 400 here... balanced, decked, squared, etc. His torque started at just under 2500 and peaked at 4000. Yours comes in later on every single combination. That definitely kills our running theory about stroke/bore vs deck height being the main component of the torque curves. This build of yours is shattering a crap load of illusions, even a lot of old diehard mopar nuts like my family! My dad saw the tunnel ram vid and couldnt believe a 400 could pull this much power with basically a good top end. I'm rather pleased that you are doing this whole configuration test with exhaust on it. Really shows the realistic power numbers.

[@JustMoparJoe]

Thanks for sharing that! My dad was the same way. It was 440 or nothing for him. This one is going in my racecar but I’ve got different headers or exhaust in mind. Hope you come back for part 4. It’s a game changer!

[@377PoisonDART4]

Short stroke spins up quick torque range will be in higher rev range especially with the single plane shorter runner intake with smaller cross sectional area than the T Ram its longer runner adds considerable to the velocity of the air at slower engine speeds.

[@JustMoparJoe]

@@377PoisonDART4 it’s fun to see the dyno charts between all intakes. They all peaked at 4,700 rpm for torque.

[@377PoisonDART4]

@@JustMoparJoe i believe the 4700 rpm torque peak is the result of the camshaft, I think it was 110 lsa if it was a 106 it probably would have moved the torque in the range a little lower couple hundo rpm

[@JustMoparJoe]

@@377PoisonDART4 in part 4, you can see what removing the mufflers did to torque. It wasWILD!

[@rodneybyrd9516]

I think you need to find the top RPM limits of the BB MoPar low deck, sort of a Spintron simulator!!

[@JustMoparJoe]

Zinger!

[@cjm5002]

Its nothing to do with the B vs RB for that... all in the valve springs. Hardest part is getting light enough valve train and good enough spring pressure to go higher than 6500, they just float otherwise. Not sure if you've ever heard of the overhead cam RB that mopar developed in the 60s, rumor has it that the 2 prototypes could push 10000 rpm albeit with absolutely no power over 7000 because of the intake/exhaust manifold designs.

[@musclecarmitch908]

Great to see what your getting out of this 400! Thanks for sharing all the info!👍

[@JustMoparJoe]

Thanks again, Mitch. I didn’t want to leave out any tests.

[@SteveP-vm1uc]

WOW!!!! I AM IMPRESSED!!!!!! Allllways liked the Street Dom. I really wonder what a 4-hole cone spacer and 850 would do up top. Power really carries out with her!!! ;)

[@JustMoparJoe]

That would be cool! Thanks Steve

[@edsmachine93]

Very Nice Joe, my thoughts were always on the Holley Street Dominator to be a stellar performer. I really appreciate all of these videos Joe. Take care, Ed.

[@JustMoparJoe]

Thanks Ed. I always figured it would compliment the cam choice well. Everything worked in harmony.

[@318willrun]

I agree Ed. The street Dominator was a much better intake for the Big Blocks than the small blocks. I done track tests on the small blocks and I could never get the SD small block intake to outperform the factory cast intake. Not so on the Big Blocks !!

[@lautburns4829]

Hey Guys, I just got an email from Richard Ehrenberg,tech editor of Mopar Action Magizine. He is testing the 2022 RAM TRX in California. It just ran 112 mph in 11.9 seconds. That thing is 6600 pounds without a pilot! The 60 foot time was 3.2 sec.

[@440phoenix]

Dang

[@kingnothing8286]

That guy has saved me $$$$.$$ over the years......

[@JustMoparJoe]

Thanks for sharing Laut. I think you had meant 0-60mph time is 3.2 seconds. I will beat that easily with this 400 in the barracuda! I actually have a friend with a trx truck. If you remember, I did a video on a hemi swapped 6.1 valiant, a couple years back. Same guy. Definitely want to show his newly acquired hotrod on the channel.

[@lautburns4829]

You are correct. The only reason I mentioned it was performance right from mother Mopar, in a truck, no less. And lots a guys like trucks. I’ll send you the clip but I don’t know where to send it.

[@lautburns4829]

The 60 foot time was 1.79 seconds.

[@kpgsx]

Damn Good 400 bigblock

[@JustMoparJoe]

Thank you!

[@toddselph5992]

It's so cool and interesting to see the differences between each combination. Looking forward to the next video!

[@JustMoparJoe]

Thanks Todd! They’re all great in their own ways.

[@dumpsterchicken6287]

There's a lot of variables, and you're getting them all dialed in. Looking good.

[@JustMoparJoe]

Thanks brother. It really shows out next video 🫡

[@smilsmff]

great to see the Street Dominator tested, i ran 440 with and without open 1 " spacer barely difference so i used 1/4" composite like the factory intakes used and was nice

[@rodneybyrd9516]

Maybe you should try a sheetmetal intake with a giant plenum and 2 x 1150 Dominators, that should move the powerband up some!! Possibly COP ignition with a digital controller and infinite timing curves??

[@JustMoparJoe]

😂that would do it

[@Comet-hn3gm]

Well Joe, it's been fun watching so far. So far I think I was low on my HP guess by 7-8 and about 30 low on torque. I sure wish you had a bigger 4150 carb for this test. Ultimately the port size is keeping your engine from making more power, that's why they make Max Wedge right ? Is the header reducer really 2.5 inches? If so I would expect a 3 inch to help with the power you are making now. Looking forward to 2 PM.

[@JustMoparJoe]

Yes sir. You’re for shadowing part 4🤫

[@wayne8498]

Very nice, looking forward to the next one

[@JustMoparJoe]

Thanks Wayne! It’s been fun

[@wagonman1967]

Very nice Joe. Now I can do the track swap from the Weiand dual plane to the Holley SD.

[@JustMoparJoe]

Thanks Brother

[@terryboothe2309]

Great video . Stout motor . You should really be proud of it . I really like the “ Aaron returning Mopar fan “ !

[@JustMoparJoe]

Haha! Thanks Terry. We all learned from this engine.

[@Mynextproject_74]

Man that dyno experimentation looks like fun!

[@JustMoparJoe]

It was a blast. I learned so much. Part 4 ties it up

[@donaldhalls2189]

One strong engine, thanks for sharing, all the best to yous and your loved ones

[@JustMoparJoe]

Thanks Donald! Hopefully you catch part 4, in 3 minutes!

[@donaldhalls2189]

@@JustMoparJoe I'm running a bit late was trying to put a fuel tank into a 83 Jaguar of my Uncles, but I'm definitely guna catch it, all the best

[@johnelliott7375]

Looking forward to it. I'm still in the ball park.

[@JustMoparJoe]

Definitely!

[@johnfitcheard7112]

I'm amazed. This is build I've been waiting on forever. What would a 400 do with the right parts thrown at it, Wow! A 440 I would have to say over 600 hp with same parts!

[@JustMoparJoe]

Thanks John. There are many 440’s and even some 452’s that aren’t performing this well. I think it’s a great combination of parts and good machine work. I think this engine is easily capable of reaching 550/550 with the right carburetor and collector extensions.

[@johnfitcheard7112]

@@JustMoparJoe you're almost there! 👍👍

[@tonylarimore1553]

Bad ass buddy sounds good I hope my 452 stroker has the same numbers I would like to find out in the spring iam going to send 318 will run a video if you are interested

[@JustMoparJoe]

That’s awesome! He had a great idea about that. Looking forward to it. He is one that I don’t miss.

[@hayneshvac2]

Nice...That 400 is quite the beast...can't wait to see it unrestricted.

[@JustMoparJoe]

Absolutely! That’s my rookie dyno mistake.

[@hayneshvac2]

@@JustMoparJoe not so rookie honestly...depends what you are shooting for, sometimes even though a restriction can reduce horsepower, it can increase torque...could sometimes be useful for the quarter mile...it's all about the recipe

[@devanaustin1]

Awesome build Joe, can’t wait for part 4. If the 493 I’m building runs half as well as this thing I’ll be ecstatic! What are your thoughts on main studs and girdles for stroker builds… necessary or no? I’m going to be limited by my heads because the pulling truck class I’m aiming for is limited to iron only; the old Indy iron heads are hard to come by, so going to run a set of worked over 915s for now.

[@JustMoparJoe]

Thanks brother. I have heard from many guys that anything under 600 hp doesn’t need the girdle. I think the caps walking does happen, but mostly at higher rpm. I would fly it and watch it. If you’re going N/A, then it should be good. Adding the ARP bolts or studs(with line hone), should help.

[@markwise9868]

We run a ported Holley SD on our 505" RB. It fits under a stock, flat hood and works really well...especially with a 250 shot of nitrous! 😁

[@ragingbull3406]

Never have I seen a 400 make 500 ft;lbs. Awesome dude!

[@JustMoparJoe]

Thank you! And the beauty is, it revs like a buzzsaw to that rpm and Carries that rpm straight into the hp peak. Should make for a great 60’

[@Umwee63]

Excellent work Joe I knew I my HP guess was too low. Originally I was at 572 before I edited it. Have to admit the compression scared me, knowing it wouldn't rev high were I thought peak would be at 6400

[@JustMoparJoe]

All good brother. I have been prepping for part 4 all day. If I could go back in time, it’d be a game changer

[@HowardJrFord]

That is a strong running 400 ! Great build you have there .

[@JustMoparJoe]

Thank you!

[@Ridendrty]

This is a good series Joe👊 I way underestimated this build. Sounds great and you are well over 500 HP.

[@JustMoparJoe]

Thanks brother!

[@RT211Racing]

Man that's great! I'm really impressed,and I'm sure it has a little more in it yet for part 4!👍.....The Cuda is gonna be in the 6.45-6.55 1/8 mi. range now!😊

[@JustMoparJoe]

We shall see! I would hope to crack into high 6’s. Thanks, Ross.

[@Scarlet_1971_cuda]

Sorry I missed the premier, but great video. Q: do you have number below 4K RPM? My 451 I want to build will be mostly street other than future NNN events. Therefore, wondering which is more street friendly.

[@JustMoparJoe]

Thanks John. I had set the premiere early so it didn’t mess up anyone’s Friday afternoon plans. The performer rpm had the earliest rpm pulls. It would be the best all around intake for the street and allow some hood clearance. Aaron stopped pulling so low, as he could tell that peak torque was coming in around 4,700 with all the intakes.

[@karlsracing8422]

That is going to be a big improvement over the small block.

[@JustMoparJoe]

Yes sir. When I yanked the mufflers, it was a game changer! Check out part 4 if you can

[@mikestackhouse9001]

So, you had the glass packs on for the tunnel ram tests as well? Amazing power in that beast.

[@JustMoparJoe]

Yes sir. They’ve been on all day. I owe the world an explanation in next video, and the final results!

[@SimpsonsSpeedShop]

Brooooo ya tough to beet a good single plan! Yes ram may have better number but the extra rpm running out the back door would be great 👍🏻 ditch that exhaust and run a header extension 18” would be the jam! Keep them vids coming 🎉

[@JustMoparJoe]

That's the plan! Thanks Joe! This one should hit 550/550 and rev like a buzzsaw

[@drmopar6122]

That SD intake really surprised me with the numbers it put down! I’d like to see what a Victor 383 would do on this one.

[@JustMoparJoe]

Thanks Dr! I agree. It’s be a quick and easy test. The cam is only rated to 6,400. Maybe the intake would help stretch that

[@robsdeviceunknown]

Man I would do anything to be able to afford the intake and holly system like yours to replace the setup on my 5.2 magnum. The PCM is having issues and I can not find anyone within 60 miles of me that has a DRB 3 scanner. I just got done putting my life savings, 10K, into rebuilding this truck, it's mint. (I'm disabled so 10K is a LOT to me). ANd now the immobilizer is going off and truck wont start. Requires a DRB 3. So yeah, gunna have to sell off my dream truck for pennies on the dollar now to someone who can afford to fix it.

[@JustMoparJoe]

I’m sorry to hear that. I don’t know enough about the electrical systems on those trucks to be of any help. Hopefully you can get it figured out.

[@rodneybyrd9516]

Did you take a reading of vacuum from the spacer at WOT? Might indicate airflow restriction if the carb is too small if it maintains very much vacuum.

[@JustMoparJoe]

We did with the rpm. It didn’t show any

[@MsKatjie]

Great work. Rarely seen motors for here { Oz }, the B's and RB's. 361 being in old trucks, as in 60 to, 70 year old jobs. Love the big bore compared to the L.A. engine! However, does the wide bore lead to detonation?? It seems to like the Revs too! The dissy at the front, ticks the box, for me big time. Rather than the bonnet straddling, acrobatic agony; required for working the dissy! Great stuff men. cheers. I will have a few for Yous! Would you go 361 B or 360 L.A. ? The 370 I am breaking in and starting to tune, is a 360 with 60" oversize bore. It only cleaned up at 50", from a standard bore, it was that worn. Have fun and once again, have a good day, to all !

[@JustMoparJoe]

Thanks for following along. The 361 may limit you on affordable aftermarket pistons. I don’t believe the 400 to be more prone to detonation, especially here, because of the efficient heart shaped combustion chamber and quench distance with the flat top piston. The 361,383,400 all have the shortened stroke, which really encourages revs. This engine makes 500 foot pounds early on and holds it. The beauty is that it will snap up to that rpm much quicker than a 440. The beauty of a 360 is the longer stroke tends to provide better torque than the 318.

[@MsKatjie]

@@JustMoparJoe Sorry 318 guys, there is no way the 50 cubes from a 318 to a 370 is not really worth it. I used same every thing, that's right: heads, intake, cam , carb and intake. The difference was from 1 to 7.5 to 1 to 12. the same cam, intake 475" at 238 to 0.50 " and exhaust at 485" at 242 at 0.50". Not much and bowled 318 heads with1.94 intake and 1.6" exhaust. Nothing startling but even through break-in, is the order of the day, one is very happy , with snappy results and a healthy hooten tune!

[@218422100]

That thing sounds mean!!! Makes me wanna pull my 400 out and come down to Arkansas and build mine!!!!! 💯😎

[@JustMoparJoe]

Thanks James. This one will be flying and frying some rubber soon

[@218422100]

@@JustMoparJoe you gonna do another contest to see who can guess the best time you run? And what were the final numbers without the mufflers????🤔🤔🤔

[@JustMoparJoe]

@@218422100 yea sir! Part 4 is coming this week!

[@218422100]

@@JustMoparJoe I'll be waiting and watching!!!!!💯😎

[@big3fan916]

The Holley Intake is a nice single plane if hood clearance is a concern , But I really really like the tunnel ram !

[@JustMoparJoe]

Thanks brother. I agree. The tunnel ram is king. The big boys run them with dual dominators or toilet bowls. I will probably go single plane because I only have the one nitrous plate 🫡

[@rickseeman5679]

Holley intake has it goin on!

[@JustMoparJoe]

Yes sir. Really nice for midrange for sure

[@MyKARSShop]

Good stuff. 😎😎

[@JustMoparJoe]

Thanks Mike!

[@waltertomsic336]

I'm thinking that 2X4 tunnel ram is the way to go. Carrys that TRQ/HP throughout the RPM range!

[@JustMoparJoe]

Its true. I will probably go with the single plane. I’m a bracket racer, but otherwise, I only have the one nitrous plate

[@timosracecars]

Well I was wrong 🤷🏻‍♂️ I predicted the Edelbrock would out do the Holley on the dyno, but not on the drag strip. Why not have both 😉 The weiand surprised me most tho. TR and two 750s is usually a 40hp bolt on, in my experience with B engines.

[@JustMoparJoe]

Thanks brother. The edelbrock didn’t get a fair shake. I will discuss it in part 4, and show the gains that it missed. Also give the final numbers 👍🏼

[@ClintsStreetMachines]

Sweet, now you have an excuse for a part 4!

[@JustMoparJoe]

Yes sir!

[@55gaser26]

Tho old Holley life been making good numbers for long time, but they always needed a little tweaking. Little jetting and open headers with maybe a 18 inch extension??

[@JustMoparJoe]

You called it! Thanks brother

[@377PoisonDART4]

I should have said for the single carb combo!

[@TheProchargedmopar]

👍💪

[@JustMoparJoe]

Thanks buddy!

[@rodneybyrd9516]

She's wanting the fuel Joe!!

[@JustMoparJoe]

For sure. That RPM intake would have liked it too!

[@johnelliott7375]

This ought to be good

[@JustMoparJoe]

Thanks John

[@danieljacobson5774]

Nice. Job Joe..do you still have 4th he white challenger?

[@JustMoparJoe]

Yes I do! I thought about unhemi swapping it someday! Especially seeing the numbers this 400 makes

[@danieljacobson5774]

@@JustMoparJoe thanks Joe..so you have a hemi in the challenger now..also were street. Hemis good performers?? Heard mixed reviews on the 426 hemi

[@JustMoparJoe]

@@danieljacobson5774 it’s a 5.7 hemi from a 2005 Durango. It has a 6.1 cam, long tube headers, and professionally ported heads. It does well, but for the cost, I could have built a lot more big block power

[@pokebass1]

I'd sure like to know what's going on with the dyno graphs. At 4,500 RPM, it shows that the Holley intake made less torque, but more horsepower than the Weiand tunnel ram. That is obviously mathematically impossible.

[@JustMoparJoe]

I had to plot the graphs using Google forms. You can trust the charts

[@377PoisonDART4]

It was hard to see the data collected for all the points but I didn't see a VE data point did you do the math for VE to see if it would like or need more cfm

[@JustMoparJoe]

I didn’t have VE anywhere. As for carb, sending the holley brawler back and getting it warranteed. Will try it again at the race track with my AFR and watching time slips

[@brianandglendaharkin9457]

👍🏻💯🇦🇺

[@JustMoparJoe]

Thank you!

[@texasmopar5557]

That Chevy distributor is holding you back.

[@jasonriede6056]

Now I know why Chevy put distributors in the back of the motor 😂

[@texasmopar5557]

@@jasonriede6056 I put them in the scrap pile under the Bois de arc tree.

[@JustMoparJoe]

It won’t go in the racecar. But I’m certain it fires hotter than a stock mopar box and coil. Thanks brother

[@texasmopar5557]

@@JustMoparJoe I run the orange box out of pride.

[@JustMoparJoe]

@@texasmopar5557 I have one as well. Before they were made in China. Good to 6,000 rpm.