628 hp small block Chevy build.  Almost 600 foot pounds of torque.

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  • Опубліковано 21 сер 2024
  • Step-by-step how I garage built the engine for my 1971 Nova to run on pump, gas and E-85. Then testing it on a super flow Dyno at #PattonRacingEngines #Carbureted #Small #Block #Chevy #Scat #Callies #YellaTera
    #AirflowResearchHeads #MachineWork #Hoonigans #SandJeepsInc

КОМЕНТАРІ • 97

  • @Thumper68
    @Thumper68 Рік тому +22

    My dad used to build 421 sbc for late model dirt cars back in 80s,90s. They were absolute monsters would make over 600hp rev instantly and run wide open all race long pretty much. My first memories are handing him wrenches and the sweet sound of those engines. He is a master machinist and mechanic since he was like 19. Seems like I can never absorb all the information in his head. He’s forgot more then I’ve learned in 39 years 😂

  • @ChrisMcCutcheon-wj2pp
    @ChrisMcCutcheon-wj2pp Рік тому +6

    400 sbc, great motors, 2 bolt blocks only, 4 bolt motors while being x-rayed have a Crack somewhere, usually in lifter galley, use the 2 bolt and add splayed caps, have 2 use small base circle cam, torque monsters, I like factory stroke with 6 inch rods, wiseco pistons

    • @faustthehammer8706
      @faustthehammer8706 Рік тому +3

      I have a splayed cap 817 block does fine just n/a don't put nitrous if you already have over 12.1 she will bust but they are torque monsters for there era

  • @ronbrooks6322
    @ronbrooks6322 Рік тому +6

    Built a 400 with a dart block, AFR 220 heads, Bullet Cam .675/.694 - 275/285@.05 110LC, 6.0 Callies rods, Callies crank,
    Diamond Pistons, 13.5cr, Edelbrock SV 2 ported intake, BLP 950 carb ran on 110 race gas.
    made 670hp@6800/585tq@4500. (Should have set it up for E-85 probably would have run a little better) . I like what you did and how you built your engine, especially making the numbers on a engine built for pump gas and nitrous. Let us know how it does at the track!

    • @robertclymer6948
      @robertclymer6948 Рік тому +1

      WOW Ron, Sounds amazing! You spared no expense on that build.

  • @michaelphelps5064
    @michaelphelps5064 Рік тому +1

    All that attention to detail helps you get to know your engine on another level. If you can carry that through the entire build, you will have an engine that will serve you well for a good while. Myself, 1 machine shop, 2 machinest friends with measuring device's i didnt have, assembled my first 383. Iron heads, healthy solid mechanical cam, single plane with a 750 dp. It ran the 1/8th mile and around town for 20+ years. Now its .040 over with aluminum heads and a hydraulic roller cam. This is the 3rd summer with the improved verson. I let the guys at the speed shop pick the parts and assemble it. Dyno said 543 hp at 6300 rpm. With 4.56 gears, a strong powerglide, and a 9in converter, it is slow in a stock body and interior 69 Nova. 7.08 in the 1/8 mile. But its fun, and it has not broken parts, yet.

    • @n20power78
      @n20power78  Рік тому

      Thanks and it sounds awesome 👍🏼👍🏼

  • @25vrd48
    @25vrd48 Рік тому +5

    I like the 400 sbc engines . I built a 406 for a 32 Ford street rod and it was a hand full at times . Great build and a Great video .

    • @robertclymer6948
      @robertclymer6948 Рік тому

      Couldn't find a 351W and stroke it to 408? Keep a Ford engine in a Ford car. WTH

    • @25vrd48
      @25vrd48 Рік тому +1

      @@robertclymer6948 I had a dose of Ford engines with a 53 Mercury Flathead . It ran great until I wore it out and then it was a constant piece of junk . Been Chevy man since I was knee high to a grasshopper . Killer 406 you got there . Thanks bro

  • @michaelmaher4328
    @michaelmaher4328 Рік тому +2

    when i ported and polished my block, i only got 88 horsepower. My hats off to you, you are a heck of a engine builder. Nice content bruh, I am doing a similar sbc build. 13.5 to 1 e85 street/strip mild solid roller and would love the power you made. Nice skills my brother. Zepplin is for winners. Lol

  • @coyote8198
    @coyote8198 Рік тому +1

    I really like your taste in music while you work.

  • @amracingent
    @amracingent Рік тому +1

    You doing good !! And parts.

  • @larryburns4605
    @larryburns4605 Рік тому +1

    I run water line from each side of pump between center cylinders about 3/4 inch from deck really great for any small block especially 400 .

  • @ipmike232
    @ipmike232 Рік тому +1

    I dig the streetlight manifesto!

  • @joshuagarvey9362
    @joshuagarvey9362 Рік тому

    Love my 406 AFR headed.370 gears and A rockcrusher RPM in A blink,grunt,torque monsters.BEAST.

  • @edsmachine93
    @edsmachine93 Рік тому +2

    Very nice work.
    I just subscribed to your channel.
    Thanks for sharing.
    Take care, Ed.

  • @adamformanack318
    @adamformanack318 Рік тому +1

    i learned how to detail an debur an perp sbc blocks and JB Weld SS screens and install magnetic plates an if you run a factory block.Thats what i do...cause when things let go i like to try an keep top problems on the top end an bottom end problems down there the best i can.I try to keep the cost of opperation under control the best i can anytime you buzz these mother-Fers above 6500G it could cost you $3500 to put it back together if things go south on you. The 400 sbc is a good displacement to build a Comp Mill...😎💯✌

  • @mikecondoluci53
    @mikecondoluci53 Рік тому

    very nice build

  • @glennsouthard9208
    @glennsouthard9208 Рік тому +1

    Nice work

  • @richardsmith-qy6vl
    @richardsmith-qy6vl Рік тому +1

    Great job you make as much power as my big block and only about 3 cubic inches I have a 427 60 over so a 439 it's a mild build for my daily driver it's got about 10.5 to 1 compression afr 265 oval port heads a Howard's hydraulic roller it 235x241@50 with a 108 lsa I do have a solid roller for it but not sure if I want to use it or not it's got 256x260 duration @50 and 666 lift I was think with a 1.8 rocker it would have right at 700 lift I just hate to have to change springs and do all that work after I dynoed it and I don't want to put more money out on dynoing it again it made 661 hp 605 torque with the hydraulic roller I think I'll just hang on to that cam for when ever I freshen it up or another build.great video thanks for sharing it

  • @bigal878
    @bigal878 Рік тому +1

    Nice engine, watching from 🇦🇺👍🏻

  • @Thumper68
    @Thumper68 Рік тому +1

    Good work💪🏼

  • @andrewbecker3700
    @andrewbecker3700 Рік тому +3

    Just scored a '74 or '75 400cid engine out of a '75 3/4 ton pickup. It's all original with points distributor still on it. Hopefully the bores will clean up at no more than .040 thou over. Shoot'n for 550+hp on pump gas with 220cc heads. Probably end up around 420cid. Internally balanced with 6 inch rods and an 3.875 stroke 9000series Scat crank. Compression ratio with flat top hyperutectic pistons should be around 10.8 to 1 with the block zero decked. The combo all revolves around the hydraulic roller cam at 236° duration at .050 on a 112° LSA and .580 lift with 1.5 ratio rockers. I'm going with 1.6 ratio Comp ultra magnum rockers to cheat the relatively small cam up to over .600 lift. Edlbrock ProFlow EFI system complete with single plane intake, injectors, fuel rails and 1000cfm throttle body. Box nose S-10. Can haul my bike around in the back of it, no problem. Makes loading much easier than full size trucks.

    • @b.c4066
      @b.c4066 Рік тому

      If it's a 75, it would have hei distributor stock, even some of the late 74 stuff had hei. Probably not the original engine if it has points, could be 70-71-72-73 engine.

    • @andrewbecker3700
      @andrewbecker3700 Рік тому

      @@b.c4066 trucks could still have points in early '75 that's why I said it's either a '74 or '75.

    • @andrewbecker3700
      @andrewbecker3700 Рік тому

      The truck is '75 but the engine is most likely a '74.

    • @robertclymer6948
      @robertclymer6948 Рік тому

      Don't know much about the 400 Chevy engine. Did they ever make it into production cars? Or just trucks? Thanks

    • @andrewbecker3700
      @andrewbecker3700 Рік тому

      @@robertclymer6948 1970-1980. Most were in trucks, but many fullsize cars and lots of station wagons also. RV vans were another common vehicle because the added cubes helped tourqe output in that situation. Big blocks don't fit in vans.

  • @hankclingingsmith8707
    @hankclingingsmith8707 Рік тому +1

    Nice torque

  • @dano4572
    @dano4572 Рік тому +1

    PUTTIN IN ALL THAT LUV INTO A TWO BOLT.

  • @edpetrocelli2633
    @edpetrocelli2633 Рік тому +3

    I like that combo, just finished one six months ago (427 cid) and got close results, 577lbs torque at4500rpm and 601hp at 6500, hydraulic roller and chinese heads and I assume yours is on pump gas too.

    • @n20power78
      @n20power78  Рік тому +1

      Ya just 91 octane. But then we put it on E85 to see what the difference would be.

    • @edpetrocelli2633
      @edpetrocelli2633 Рік тому +1

      @@n20power78 When I tried that about 5 yrs ago on a 383 I lost 5hp up top and gained about 25 ft/lbs from about 3000 to 5000rpm but the guy didn`t want to go through the extra trouble of draining the carb, pump and lines between outings and the customer is always right.

  • @redherring4335
    @redherring4335 Рік тому +1

    Nice engine!!! Music selection is pretty good, too.

  • @heshtesh
    @heshtesh Рік тому +1

    Very much like your build but i'll sleep better a night knowing my 640 hp. pump gas 399ci is sitting in a Dart Little M block.

  • @basedsigma5634
    @basedsigma5634 Місяць тому

    Just get a dart block
    434 rotating assembly.
    421 stroker on weak block is a short term high....

  • @robertclymer6948
    @robertclymer6948 Рік тому +1

    Hello! what is plug polishing a block? viewed at 1:30 into the video. And, adds another 100hp? WOW Would have been nice for you to go over that. Very good video though sir. I'am sure it will (IS) a beast. Thanks for sharing. Cheers from Motown.

  • @flinch622
    @flinch622 Рік тому +5

    I could see 3.875" in a stock block, but 4"? I'm surprised.

  • @screwdajuice
    @screwdajuice Рік тому

    yea thanks for blowing my ears out at 5:29

  • @larrywarner9314
    @larrywarner9314 Рік тому +2

    Are you using the steam holes or pluging them ?

    • @n20power78
      @n20power78  Рік тому

      Hey man, thanks for the question. No I’m not using the steam holes. My car has a huge radiator in it with a great water pump/ cooling system and I have no cooling issue. I actually had to put a thermostat in the car to warm it up because it ran so cold during the winter.

  • @Jeffsa12
    @Jeffsa12 Рік тому +2

    Who makes those rockers. They look like they're pedestal mounted in pairs. Kind of a step between stud mounted and a shaft rocker setup. Does the cost fall between a good stud mount and shaft rocker setup?
    Nice build. Whats the compression ratio end up at? This thing should absolutely kill it on both the street and strip.

    • @racerdoc
      @racerdoc Рік тому +2

      Yella Terra makes the rockers. Nice australian pieces.

    • @n20power78
      @n20power78  Рік тому

      They are YellaTerra rockers. And it’s right at 10:5

  • @TheShannon60
    @TheShannon60 Рік тому

    Should have put splayed 4 bolt caps on to help it live

  • @arturozarate1752
    @arturozarate1752 Рік тому

    Very very nice looking engine. I'm curious though. I've seen other 400 builds where the deck has had pipe plugs installed in all the water passages, and then milled flat. What is the purpose of this and why did you choose not to do this?

  • @gregorykolanek6820
    @gregorykolanek6820 Рік тому +1

    Crazy angle on the rocker, is the roller still on the valve tip ?

  • @dustedone
    @dustedone Рік тому +1

    2 bolt mains??? A lot of machine shop dollars $$$$. Might as well build a 307

  • @jrevan
    @jrevan Рік тому +1

    I was always told that a two bolt could only handle 450hp on its best day.

  • @HioSSilver1999
    @HioSSilver1999 Рік тому +1

    400 sbc are nasty

  • @heshtesh
    @heshtesh Рік тому

    I'm curious how close are cams are if you don't mind, solid roller 260/266@50.........679/668..........110

  • @smilsmff
    @smilsmff 11 місяців тому

    what was camshaft duration at 0.50?

  • @NoOne-wv6zc
    @NoOne-wv6zc Рік тому

    2 bolt mains.

  • @larrywarner9314
    @larrywarner9314 Рік тому

    All that stuff should have been done before the machine shop but your block

  • @nick1977eddy
    @nick1977eddy 5 місяців тому

    They said you can’t do that with a stock block

  • @1320pass
    @1320pass Рік тому

    Sounds good man. Curious why the heads weren't drilled to match the block steam holes, or did I miss it?
    What CR did you end up with?

    • @n20power78
      @n20power78  Рік тому

      It’s got a super big radiator high volume water pump. Those are never run hot so I really wasn’t concerned with it.

    • @1320pass
      @1320pass Рік тому

      @@n20power78 Gotcha, thx for the reply. Have fun with the big mouse powered Nova.

    • @TheShannon60
      @TheShannon60 Рік тому

      We plug the steam holes to help keep the cylinders round

  • @joe-hp4nk
    @joe-hp4nk Рік тому

    What's the C.R. and cam specs? Thanks.

    • @n20power78
      @n20power78  Рік тому +1

      It’s 10 1/2 to 1 and the cam is at 262

  • @getgetoutout
    @getgetoutout Рік тому

    The 400 has over heating issues because the cylinders have no flow between them. They are siamesed. They added steam holes in the deck near where the cylinders meet. You must drill holes in any cylinder head that is not the original 400 head. I don't see that was done here. The gasket doesn't match the block either. I have stayed away from them for that reason. That amount of horsepower is going to create a lot of heat that cannot be dissipated evenly.

  • @patrickmoore1017
    @patrickmoore1017 Рік тому +1

    You have the cam specs?

  • @manyamile410
    @manyamile410 Рік тому +2

    Two-bolt mains? Not for long.

  • @lolmarcos9912
    @lolmarcos9912 Рік тому

    POUND FEET!! POUND FEET!! NOT FOOT POUNDS!!

  • @ragingbull3406
    @ragingbull3406 Рік тому

    What do you mean by "6 inch piston"?

    • @glennsouthard9208
      @glennsouthard9208 Рік тому +1

      Pistons are designed to work with 6” rods and stock 3.75” stroke but when used with a stroker crank and 5.85” rod it works out with a little deck surface milling

    • @n20power78
      @n20power78  Рік тому

      I used a piston for a 6 inch rod and a stock 3.75 stroke in a 400 sb

    • @ragingbull3406
      @ragingbull3406 Рік тому

      @@n20power78 👍

  • @dannyoutlaw8001
    @dannyoutlaw8001 5 місяців тому

    Quite smacking that chewing gum in everyone ear....chew with your mouth closed dude

  • @gregorykolanek6820
    @gregorykolanek6820 Рік тому

    100 HP ? ! ? Better stay away from those fairy tales. Don't embarrassing yourself.

    • @n20power78
      @n20power78  Рік тому

      😂 I was just being sarcastic. 👍🏼

  • @peggyparrow2059
    @peggyparrow2059 Рік тому

    Way too long a vid ! Aint got all day to watch ! Dislike !

  • @lewisfoltz6306
    @lewisfoltz6306 Рік тому

    Nice build and well made video.
    Do you have any issues with that eliminator intake not sealing and sucking oil into the intake and head runners?

    • @n20power78
      @n20power78  Рік тому +1

      No, not at all. The car that it’s going it is not running yet.

    • @lewisfoltz6306
      @lewisfoltz6306 Рік тому +1

      @@n20power78 I had two different 4811pm intakes on my brand new 427 dart shp block with AFR 220 heads and both intakes sucked oil from the lifter valley. You may want to keep an eye on that.

    • @lewisfoltz6306
      @lewisfoltz6306 Рік тому

      Has anyone else had an AFR intake that wouldn’t seal?

  • @johnpena9165
    @johnpena9165 Рік тому +1

    What main caps are you going to run ?

    • @n20power78
      @n20power78  Рік тому +1

      Thanks for the question man. I’m just running stock caps. This isn’t a race car or anything where I’ll be beating up on the motor constantly.

  • @Scubasteve22
    @Scubasteve22 Рік тому

    painting the block after assembly is gay...