Big Block 400: Part 4/4 Final Numbers and My Dyno Mistake!

[@andrewfrisard8960]

Great series! Realistic build that is attainable by most of us weekend warriors! A lot of folks think you have to spend crazy $$ to have fun! Best channel for us Mopar fans!

[@karlsracing8422]

The people who spend big money are put on the trailer! 😆

[@JustMoparJoe]

Thanks Andrew! I appreciate the support

[@edsmachine93]

Good video Joe. Thanks for the shout out. Nice contest, there was alot of really good guesses. There was definitely alot of testing in this series. You should be very proud of this build. Thanks for sharing. Take care, Ed.

[@JustMoparJoe]

Thanks again! Definitely proof in the 400

[@SteveP-vm1uc]

Damn Joe!!! She did a lot better than I expected!!! You put together one hell of a combination!!!!! Great head work too!! Love to see results of a long tube header...

[@JustMoparJoe]

Thanks Steve! The fenderwells are 42” tubes and 3.5” collector versus 35” tubes and 3” collectors. Something to ponder

[@218422100]

Outstanding series and final numbers!!! This was an excellent series on a motor most overlook or completely dismss. The fact that my car came from the factory with a 400 makes this series even more important to me. Thank you for taking the time to do this series and share literary everything with us. I can't wait to see it in the car and numbers you put down at the track. Thank you again and those numbers were fantastic......you killed it man 💯😎

[@JustMoparJoe]

Thanks James! I’m ready to get her there!

[@mrpurcountry]

Incredible job Joe, definitely shows the 400 could be a strong winner.

[@JustMoparJoe]

Thanks brother!

[@ThirteenTwentyRepair]

The street Dom for a big Mopar has always been at the top of most shoot outs. It just plain works.

[@JustMoparJoe]

Yes sir. I will go with it, but maybe ca get a test again on the track with the rpm after some light porting. Every combination is different for sure.

[@JonnyMopar]

Good job Joe. Love this 400 story and it’s power and torque it makes.

[@JustMoparJoe]

Thanks Jonny!

[@da1082]

Hi Joe, been following you for a short time, and want to say that your 400 build is awesome! Great power and torque on pump gas. I have a 440 running Trick Flow 240 heads 10.25 :1 with a 650" /276@.050" duration cam making 620 hp and 580 tq. So I would say your craftsmanship is spot on! Keep up the great vid's.

[@JustMoparJoe]

Thanks for sharing that! I really wish I could have seen the 550/550, but the real numbers will come on a time slip 🫡

[@da1082]

Depending on the cars weight and rear gears, I'm guessing low 11's at 120

[@JustMoparJoe]

@@da1082 car weighed 2945 before. 4.10 gears and 28” tall pro bracket radial. I would think high 10’s are achievable.

[@da1082]

@@JustMoparJoe oh yes seeing how light your car is , 10's are definitely going to happen. My Challenger weighs 3650, and I ran 4.57 gears went 10.84 @124. Lately in swapped in a Dana60, with 4.10 gears ET dropped to 11.15@123 but that is through a full 3" exhaust system not open headers...

[@bradsrestorations1085]

Joe, Thank you for sharing this build from start to finish. You have taken the time to show a complete, "how to, step-by-step" series. Many of the procedures that you detailed can be applied to any build. Excellent learning videos! Congratulations

[@JustMoparJoe]

Thanks, Brad. My ultimate goal was to go from bare block to built, to to dyno, to race track! I don’t know of any others willing to show their work and test it in front of the world. Thanks for following along, and the support!

[@cjm5002]

Gratz to the winner! I totally underestimated that 400 in stock bottom end form. Ive seen crazy numbers from a stroked one but that is the first Ive seen one be that sick without a whole different bottom end. Also, I hope that makes the "dual plane" doubters second guess themselves a bit more too. I gotta be that guy that says I told you so with all that torque they couldnt even see on the dyno cuz too low RPM!!! Dual plane suck for high rpm but they just rock for street and daily drivers. I mean I'm glad I was right that the holley made the best torque but I think I'd have lost that wager if you'd done the tunnel-ram uncorked. I can only imagine what the numbers would look like with a 440 block getting the same treatment as this engine. Great series Joe, thanks for giving it to us!

[@JustMoparJoe]

Thanks brother. I was at the 1.3 hp per cube. I would need to see 578 hp with a 440 or 586hp with a 446. It’d be an interesting comparison

[@TonysHotRodGarage]

What an awesome running engine! Great work Joe! 🏁🏁

[@JustMoparJoe]

Thanks brother! It’s a lot in a small package. 50-75 pounds lighter than a 440, and even lighter than the 408! I weighed them both. Video coming up!

[@mopar4465]

Can't wait to see it at the track!!

[@JustMoparJoe]

Thanks brother! I’ve been dreaming on it every night. I just weighed both engines! Video coming soon!

[@blakesmusclecar]

This was a GREAT series of videos Joe. That engine is really making some steam, especially pound for pound. Super impressive build my friend.

[@JustMoparJoe]

Thank you very much!

[@johnelliott7375]

Hey I'm happy that you have shared this with us Richard! 😉

[@JustMoparJoe]

😂🫡

[@johnelliott7375]

As far as I am concerned with it, you and Ed are just as good as the engine masters with no budget.

[@JustMoparJoe]

Thanks John

[@johnelliott7375]

Accepted by Amateur hour legacy garage. Great job and congratulations on your building a great bracket motor and good night to you all.

[@JustMoparJoe]

Awesome! Thank you!

[@johnelliott7375]

@@JustMoparJoe your welcome.

[@Comet-hn3gm]

Hello Joe. Looking forward to when you get this engine in the Barracuda and make some passes.

[@JustMoparJoe]

Thanks brother! Getting closer every day!

[@slowg8701]

Man that's some great numbers.

[@JustMoparJoe]

The big winner! Send me an email and I can get you some prizes! [e-mail]

[@MidnightOilsRestoration]

This was great to watch step by step Joe, thanks for bringing us all along brother! I know you would have picked up big gains with a larger header (3") and another good 14-18" of 3" collector. The scavenging effect is a big deal. I had a 540-570hp estimate in mind and I didn't get to catch the last video right away but when I did it definitely made a lot of sense. That engine is a great piece of work my friend! Definitely something to be proud of...and you're right- it proves the 400 without stroking will flat get it! Take care brother 😊

[@JustMoparJoe]

Thanks Ryan! I test fit it in the barracuda yesterday and have more on the 508 today!

[@MidnightOilsRestoration]

@@JustMoparJoe sweet! 👏👏👏😁😅

[@moparmarkstpac]

I'm pretty sick with covid right now, but I got one eye open to watch with. Great motor Joe, lots of fun coming this summer!

[@JustMoparJoe]

Thanks Mark! Hope you feel better

[@moparmarkstpac]

@@JustMoparJoe thanks Joe!

[@MyKARSShop]

Good stuff. Fun series. Now I’m lookin forward to seein time slips. 😎😎😎🔥🔥

[@JustMoparJoe]

You and me both! I still think I’m a few less dollars into the 406. Weight comparison coming soon

[@gregtough9055]

Great video!!! I totally underestimated the build. I'll go eat my crow for dinner now. I would love it if you had the time to work the tunnel ram with open headers. The dyno helps so much for tuning, it would take weeks of track testing to sort it out.

[@JustMoparJoe]

That’s true Greg. If I can get the other intakes on the car, I’ll use an afr everywhere I can

[@devanaustin1]

Awesome work Joe, keep up the great content!

[@JustMoparJoe]

Thanks! Will do!

[@donaldhalls2189]

Wouldn't think that the glass packs would make so much horsepower ,thanks for sharing, all the best to you and your loved ones

[@JustMoparJoe]

Thanks Donald! I will retire them to something else.

[@blairlindsay5791]

white paint pen stripe the length of your collector extension . Good indicator to identify ideal length , by observing discolouration of the stripe

[@JustMoparJoe]

I’ve heard that one quite a bit. I think engine masters settled on 16”

[@DustorBust]

Way to break those 400 myths. You are a hell of a builder Joe!! Might have to ask you to build me one someday. 😜

[@JustMoparJoe]

Thanks Marcos! Mopar preferred, but I did build a 350 once 😂

[@paullittle2037]

looks like a good stout motor joe... good job, it ought to move that little barracuda real good

[@JustMoparJoe]

Thanks Paul! There are bigger engines and there are faster engines. But I will definitely stand behind this one!

[@1563smb]

Looks like good numbers to me 😁

[@JustMoparJoe]

Thanks Shane! Someday I may convert you!

[@bobbyz1964]

Very impressive build !

[@JustMoparJoe]

Thanks brother!

[@davepotanko5514]

Thanks for your hard work. Making me rethink the 400 in my Challenger and save the coin of stroking it. Would be interesting to know what the cranking compression is now that it is broken in and having the Dyno info.

[@JustMoparJoe]

Thanks Dave. I will check it out when I get a starter hooked it it in car.

[@toddselph5992]

That's some impressive gains when you uncorked it. Looking forward to seeing it run in the car. Very impressed with the 400. Kuntz and Company Engines is about 20 miles from my house.

[@JustMoparJoe]

Right down the road! That’s awesome

[@johnelliott7375]

I'm liking those numbers.

[@JustMoparJoe]

Thanks, John

[@archive.garage]

Loved this 400 build and dyno, thank you a ton for doing the test and posting the results, so impressive, been wanting a B for a while

[@JustMoparJoe]

Thanks for the support! I am definitely pleased with the results. The fun part is to throw it in the racecar and see if it’s faster than my 408 small block!

[@tomdamon7208]

Wicked pissah ! Now if only I can get my 383 to do better than 14.53 sec . I guess I have work to do .

[@JustMoparJoe]

You can do it, Tom! I would recommend the rpm intake for any street/strip car.

[@tomdamon7208]

@@JustMoparJoe that's what I'm thinking . On paper ,I should be at 12.63 and the converter is soft at the hit .

[@danieljacobson5774]

Nice work Joe.I would gladly have you build me a motor..

[@JustMoparJoe]

Thanks Daniel! I can put you on the list. Got 4-5 to build in 2023.

[@lautburns4829]

Excellent Joe! Ed machine did a great job on that block and crank for you. ✋🏻👍

[@JustMoparJoe]

I think so too! Thanks Laut

[@rodneybyrd9516]

Rookie? When Top-Knot offers you a job, that's big league props!!!

[@JustMoparJoe]

I can be bought, but can’t be had! 😂

[@rodneybyrd9516]

@@JustMoparJoe

[@TheGrumpyPA]

Looking good Mopar Joe, impressive, with mild specs. I bet different headers, make a difference. Can't wait for the strip test.

[@JustMoparJoe]

Thanks PA!

[@robertmagni7201]

I was way off on the power numbers very nice build looks like a great bracket engine

[@JustMoparJoe]

Thanks Robert!

[@davidholcomb9961]

That was really cool stuff Joe! I wonder how the tunnel ram would have done with the headers uncorked.

[@JustMoparJoe]

Thank you! I did a couple projections in this video. I think it was great for a simple 400 build!

[@Comet-hn3gm]

I think for the sum of the parts you did Fantastic !!!

[@JustMoparJoe]

Thanks brother! That’s exactly what it was about

[@TheMoparman1978]

End of the work day can't come fast enough to catch this video

[@JustMoparJoe]

Thanks brother!

[@timrayburn2461]

Great series and outstanding numbers.Congratulations

[@JustMoparJoe]

Thanks a bunch!

[@dinadaughtry8993]

Absolutely love it, my guess was way off thought that the short stroke would have a bigger effect on the torque, but I was pleasantly surprised that the stock stroke can get awesome torque #s, excellent job

[@JustMoparJoe]

Thank you! That makes both of us.

[@johnelliott7375]

It is a good strong motor Joe! 😉💯%

[@JustMoparJoe]

I think so too!

[@terryboothe2309]

You built a strong motor . I’d say you have a 550hp engine easily . It’s probably best not to show your entire hand until race season . Then you can show them what the rear end of your cuda looks like ! These videos have been a lot of fun for me . I’ve looked forward to each one

[@JustMoparJoe]

Thanks Terry! I’m looking forward to our collaboration! My baby sitter has been out of town all week. Lots of time for videos. Hope you can make it to George’s if I can make it there this year.

[@Mynextproject_74]

That's a great build and a great video series!

[@JustMoparJoe]

Thanks Cley! It was a fun one and a bit out of the ordinary.

[@dtruth5769]

Looking forward to seeing it in a vehicle

[@JustMoparJoe]

Absolutely! Coming soon

[@markallen1413]

Joe that really was an interesting series, I always thought that the 400 had a lot of potential but it came out at the wrong time....smog time so that made me realize i was on to something as your self, Mopar or no car brother 👍👍👍👍👍✅✅✅✅✅

[@JustMoparJoe]

You and me both! Thanks Mark! Now you can follow it down the track!

[@karlsracing8422]

The Big block torque curve has always impressed me over a stroker small block.

[@JustMoparJoe]

Yes sir. Not just a quick peak, this sucker carried like Hershel Walker!

[@musclecarmitch908]

Great series of results! 👍

[@JustMoparJoe]

Thank you! Cheers!

[@tomcrosby6332]

Great Series, Joe. Thanks!

[@JustMoparJoe]

Glad you enjoyed it! Thanks brother

[@posnoise1258]

Nice job Joe. How much do you think the Cuda will weigh with the big block? Any ET predictions?

[@JustMoparJoe]

Currently the car weighs 2945 without driver. I was able to weigh both these engines with a hanging scale. Video coming soon on that. I would love to see some high 6’s.

[@stannelson2582]

Nice production joe. 👍

[@JustMoparJoe]

Thanks Stan! I’ll definitely know more for next time

[@stannelson2582]

@@JustMoparJoe great job with how you put together the series. Content was great and so was how you put the videos together! Hats off!

[@Nichole-440HP]

She’s a beast Joe ! You’re a Mopar master !

[@JustMoparJoe]

Thank you! I appreciate that! Now to see what the track says!

[@robertcook8408]

You can still do more testing on the 1320 Dyno with all three induction systems just wondering if you uncap the headers with the tunnel you can please some of the people some of the time but you can't please all the people all the time

[@JustMoparJoe]

Thanks Robert. I agree. The track is the only test that matters

[@thebegrsshow]

My 453, .030 over 400, 440 steel crank, six pack rods, KB forged pistons 10.58 to 1 comp, B-1 heads, and Reed Cams .650 lift flat tappet cam made its best power with either 16 or 18 inch collector extensions. I have no doubt yours would have gained a good bit of power with them also.

[@JustMoparJoe]

Thank you for sharing! That sounds like a dynamite build. I will go with a better collector at the track for sure

[@chrisprice4420]

All great pulls Joe. Did you have open headers in mind in beginning to implement at some point or was it a "LET'S SEE WHAT HAPPENS"!?

[@JustMoparJoe]

Chris, it was kind of an added bonus deal. Glad we tested that! Wish I had brought some open pipes

[@parkermcwilliams1058]

Hi Joe now if I can get that much from my 400 mopar for my boat. I will be a happy camper ahh boater.

[@JustMoparJoe]

Yes sir! Happy New Year!

[@ericwilson2585]

That's awesome Joe, nice job, I've always known that the "smogger" 400 B blocks had a lot of potential hidden inside them. Wasn't it's first year of production 1972'? So it's roots had to have come from the heart of the muscle car era. I believe it replaced the 383, so mother Mopar must have had big plans for it, that is until that smog era thing took hold, what do ya do? Well at least Chrysler got a few of them put out there for us.

[@JustMoparJoe]

Thanks Eric. Found most of the potential, but there’s more to be had .

[@ericwilson2585]

@@JustMoparJoe Yeah Joe, that's kinda what I was thinking also. From what I've heard people say, if you're engine is putting out more torque than horsepower, or somewhere there close, then it's still somewhat of a mild engine. Maybe a cam with more duration?IDK... I had a 292 duration cam in my old 383 and it was still "very" streetable, even with the stock converter and rear gears. My high school auto shop teacher couldn't believe how smooth it ran with that camshaft. But it was only 442" lift, so that might have had something to do with it.

[@russell4799]

I think you done great

[@JustMoparJoe]

Thanks Russell!

[@stevenmcinnis8105]

Great job Joe. Your barracuda is going to fly.

[@JustMoparJoe]

Thank you, Steven! I’m excited for it. A real build in a real car that will get tested!

[@ShopKatIndustries]

That's a whole bunch of angry horses, great work!

[@JustMoparJoe]

Thanks Shop Kat! Thanks for rewatching

[@ShopKatIndustries]

@@JustMoparJoe last week I watched Nick's Garage pull 637hp out of a 528 Hemi, you're pulling more hp/cu.in.!

[@bobriekki3444]

Thanks Joe, now put the Zex plate and 150 jets on the street dominator!

[@JustMoparJoe]

You’re speaking my language!

[@stephenwest798]

There is a video on youtube where they test open headers, and the three-and-a-half-inch header collectors made the most hp and tq. My little 340 with a comp cam 270H loved long tube headers with 3 1/2 collectors open and the 800 CFM TQ. A smaller carb or any restriction in the exhaust slowed it down. Would love to see what your engine would have made with 3 1/2 collectors and 3 1/2-inch open extensions.

[@JustMoparJoe]

In the car I used TTI 2” to 2 1/8” stepped headers with 3 1/2” collectors to 3” reducers. Check out my recent Rocker arm test video. I just switched to Harland Sharps and man what a difference!

[@chrisprice4420]

I'm wondering if the 1.6 rocker ratio had something to do with great pulls.

[@JustMoparJoe]

Thanks brother. I agree

[@ROBERTBORGESON]

Success !😎

[@JustMoparJoe]

Thanks brother!

[@scottbatey3130]

It's going to run mid tens! Set up a maxwedge style exhaust dumps, 3inch out the back, electric cut outs in front of the rear tires, and good 3 inch mufflers then you can run it on the street occasionally! Visit the local bone yard for some 3 inch stainless diesel pickup pipes, they make great doner pieces! Spend as much time on the exhaust as you do on the engine! After all, unlike the engine, the exhaust will last the life of the car! So use stainless! Your car is so cool already!!! KEEP IT BETWEEN THE DITCHES!!! YEE HAW!!!

[@JustMoparJoe]

Thanks Scott! I think I have to have some flow through mufflers to live in the neighborhood, but they’ll be 3” and beyond

[@jlsracing997]

That's one fine running 400. 18 inch header extensions would have made a noticeable increase in both HP and torque.

[@JustMoparJoe]

Exactly! I would have loved to see 550/550. It’s in there somewhere. Thanks for the support! Going in my racecar soon!

[@craigvwdude]

Excellent build!! Do you have any 318 builds?

[@JustMoparJoe]

No sir. I did a 360 a few years back.

[@JustMoparJoe]

Thanks!

[@dahut3614]

Wow, I can't believe that 7 quart oil pan was worth so much power!

[@tomdamon7208]

Yeah , keep the oil away from the crankshaft .

[@JustMoparJoe]

I’ve got the windage tray and the shortest stroke I can get! 😂

[@dahut3614]

Yup, Engine Masters Episode 32: kzbin.info/www/bejne/fquTlpWZa72efKc Too much oil in the aftermarket pan killed 22 HP!

[@JustMoparJoe]

@@dahut3614 this one showed full at 7 quarts. It’s hard to tell how much gets pumped to the top end with the rockers I have, but Id rather lose 10hp versus a few bearings. Love the deep sump

[@dahut3614]

@@JustMoparJoe ...but in that video, the oil pressure actually *dropped* from the extra oil getting wrapped-up in the crank!

[@williamjwarren3735]

Nice 👍,I wonder what it would gain with trick flow 240 heads

[@JustMoparJoe]

Good question. These heads have been unshrouded, had a superb valve job, and light porting. They have 210 cc runners instead of the 240. Super nice for building that torque with such a short stroke engine. The 240’s would likely make the hp numbers rise some

[@joeljenkins2876]

Hey Joe!! I commented for the first time last week!!! I say again, ESPECIALLY after seeing the final dyno results, that you've built a SOLID engine, KUDOS to you!!! How do you feel the car will react and are you anticipating having to make any changes, and if so, what?

[@JustMoparJoe]

Awesome! Thank you! Definitely tighter converter than the 4,800 I had in the car. I will start with the different converter and see how it reacts.

[@erniesandoval7524]

got the same electric water pump on my 400

[@JustMoparJoe]

Excellent!

[@rickseeman5679]

There will always be something you need at the dyno. I wish you would have taken your AFR kit. But I knew they would have theirs……

[@JustMoparJoe]

That’s true, Mr. Rick. We tried to plan ahead

[@318willrun]

Now every 400 that was for sale for 350 bucks will now be 1200 ..... and YOU will be the blame !!!! kidding, nice pulls !!!

[@JustMoparJoe]

Haha! You did that to the 318 market years ago!

[@SimpsonsSpeedShop]

Great stuff bud 👍🏻👍🏻👍🏻

[@JustMoparJoe]

Thanks brother! I hate to bench race, but I had to be onto someone

[@mikeeiben3430]

What is the lowest RPM that you can start a pull on a dinomometer?

[@JustMoparJoe]

Hey Mike! I think I’ve seen 3,000 on engine masters before

[@jamesbehrick9588]

Maybe a stroker kit and 12:1 you might push 600 HP and the same for torque.

[@JustMoparJoe]

Thanks James. But is the extra $2000 worth 50 hp? Tough one to call. I’ll definitely go Stroker someday. But should upgrade in other areas

[@jamesbehrick9588]

@@JustMoparJoe Not too bad if you bought the stroker kit from 440 source. Comes with the whole bottom end. About $2600 for all. Not telling you your business, just sayinnnn...

[@JustMoparJoe]

@@jamesbehrick9588 thanks. I actually picked out the 508 kit from there, that I’m doing an engine build series on. Someday for sure 🫡

[@johnelliott7375]

You might have a tiny bit of reflection but not enough to worry about.

[@JustMoparJoe]

Not worried at all! Thanks John

[@johnelliott7375]

I was still close! 😉

[@JustMoparJoe]

Yes sir

[@smilsmff]

I think You made best choice with Holley , anytime using Nitrous it is said to better to use and open plenum intake manifold , since Nitrous adds massive Torque to engines. RPM would be best street car and no Juice?

[@JustMoparJoe]

I think you’re right. I put my plate under the 4 hole spacer

[@DragCadRacing]

That is a stout 400. With all that info, you have a great base to tune from for your Barracuda. IMO, 3” collector extensions are worth trying at the track. I like the tunnel ram the best, but I don’t know if that’ll fit under your hood, even with the scoop. The Holley manifold did a lot better than I would’ve imagined, but of course you’re right that it was given a lot of help with the porting. Question: I don’t recall if you degreed the camshaft. If so, did you install at 110? Or is it retarded some? That’s where my head goes with the peak horsepower coming in before 6000. But you can likely still shift at around 6200 for best ET. Can’t wait to see timeslips!!

[@JustMoparJoe]

Thanks Mike! I think the cam was in at 108.5, with a new chain, so with the stretch, it will probably grow to the 110.

[@rod426]

Awesome Joe!

[@JustMoparJoe]

Thanks Rod!

[@johnelliott7375]

Let's see it Joe

[@Remow2112]

I can't recall if you said, but did you 0 deck the block? Nice build!

[@JustMoparJoe]

Thank you! No sir. The block was true decked. Pistons were still .015 in the hole.

[@johnelliott7375]

Of course I have watched the other ones.

[@JustMoparJoe]

👍🏼👍🏼👍🏼

[@thomasward4505]

So do you recommend 440 Source Parts in general?

[@JustMoparJoe]

I really like their stroker kits. Rick Seeman agrees with me on that.

[@TheOverisel]

I think those mufflers although low restriction by design really were not designed for high HP applications. Many lower cost mufflers really Target lower perf engines where people want better sound. In the old days I always ran California and Walker turbo mufflers because they were affordable and sounded fantastic. But looking back those mufflers on a serious ho application are most likely a restriction. Thrush glass packs and Purple Hornies are probably not the best for high HP engines but none the less were the gold standard in the 70s and 80s. Dang Meijer stores had them in stock.

[@JustMoparJoe]

Thanks Mike. I was trying to mimic the purple horny style here. I even did a track test with these vs. 3” glasspacks vs. 3” open pipe. It picked up one mph with the open pipe, but no ET. I think the converter was so loose that it mattered less.

[@jmflournoy386]

crossover or X pie and make some more check your rocker arm geometry ball on adjusters are a weak spot use oil through the pushrods next time or switch to cups on the adjusters and ball end pushrods cheers

[@JustMoparJoe]

Thanks for watching 👍🏼

[@jmflournoy386]

@@JustMoparJoe good videojoe Those rockers were designed for 470 ish lift above that the adjuster angle can be off and the shafts are inthe wrong location I ran a stage II wedge in 62 Isky rockers are better than factory iron but getting hard to find I have some ERSON 1.75 iron rockers which take some grinding with stock (all) heads, Run the stiffest pushrods you can find watch some spinton videos second find the guy that does the rocker shaft relocation kits it does make a big difference and lets you run longer valves and taller springs run the lightest valves possible next time you do heads, you are doing guides anyway If you do seats I like Durabond sintered

[@DobermansRock]

The 400 is possibly the best engine Dodge ever created. It just needs to be opened up. The 426 Hemi is out of the picture.

[@JustMoparJoe]

I sure like this one. It’s punching above it’s weight!

[@af3047]

What wilson spacer did you use? Im assuming its a single plane intake with a 4 hole spacer? New to all this thanks

[@JustMoparJoe]

Yes sir. That’s the Wilson 4 hole that opens into the full plenum. The intake is a “street” single plane that’s been well ported(before I purchased it).

[@outdoormayhem31]

I had a 400 I got from a farmer that had it rebuilt after he hit a rock with oil pan . Not sure who did the work for him but man it pulled hard all the way to 6500rpm

[@JustMoparJoe]

That’s awesome!

[@dumpsterchicken6287]

Ready to Rumble

[@JustMoparJoe]

Yea sir

[@soonerlegendspodcast]

Maybe next time dang it I never win at these contests lol

[@JustMoparJoe]

Thanks Mike!

[@TheProchargedmopar]

👍💪

[@JustMoparJoe]

Thanks buddy

[@smilsmff]

why not same size collectors or Cllector to muffler with better one and all same in flow and out

[@JustMoparJoe]

That would be ideal. A collector extension the same size as the collector. Maybe one that narrows slightly towards the end. This one literally choked it down coming out. I’ll know for the racetrack

[@smilsmff]

@@JustMoparJoe there is the old school use longer length and spray paint the extension with header paint and where the paint stops Saw the rest off , that would be ideal, or 18 inches is what the rest call correct

[@hoost3056]

I think a cam swap could get you where you want it.

[@JustMoparJoe]

It’s true. The cam may be a limiting factor. Will see how it goes in the car and if I need to adjust.

[@johnelliott7375]

Sorry I will disagree with the Rookie comment.

[@matthewklein9225]

Please get yourself a better dampener. I've seen too many stock ones slip. That engine deserves it!

[@JustMoparJoe]

Thanks Matthew

[@matthewklein9225]

@@JustMoparJoe love your videos. Keep up the good work