New Engine ....... going even bigger cubic inch sbc

Discussion in 'High Performance Modifications' started by muscl car, Nov 27, 2019.

  1. muscl car

    muscl car Veteran Member Lifetime Gold Member

    Messages:
    22,728
    Likes Received:
    1,316
    Joined:
    Jul 8, 2001
    Location:
    SoCal High Desert
    Going to a 427 sbc that should make easily 600 plus hp / 590 tq

    Dart Little M 4 bolt block

    Scat 4.000 stroke 4340 forged crank

    Scat 6.000 4340 forged H beam rods

    Forged pistons ( should be 11.4 comp with my 64cc AFR Cyl Heads)

    Howard's hyd roller 600 lift , 251/259 dur @ .050 112 LSA


    Will reuse the top end of the old engine ....


    AFR cyl heads

    Edelbrock super Victor

    Wilson tapered 4 hole spacer
     
    Last edited: Nov 27, 2019
    roadrace2 and buick skylark like this.
  2. Zspoiler

    Zspoiler Veteran Member

    Messages:
    3,674
    Likes Received:
    332
    Joined:
    May 6, 2012
    Location:
    Federal Way, Washington
    That sounds fun .It will have quite a cackle to to it.
     
    buick skylark and muscl car like this.
  3. badazz81z28

    badazz81z28 Veteran Member

    Messages:
    18,596
    Likes Received:
    937
    Joined:
    May 4, 2001
    Location:
    Alabama
    Hydraulic roller is a nice touch
     
    buick skylark and muscl car like this.
  4. camaro71/holland

    camaro71/holland Veteran Member

    Messages:
    1,348
    Likes Received:
    129
    Joined:
    Aug 27, 2003
    Location:
    The Netherlands
    Nice! Congrats :bowtie:
     
    buick skylark and muscl car like this.
  5. CorkyE

    CorkyE Veteran Member Lifetime Gold Member

    Messages:
    10,843
    Likes Received:
    658
    Joined:
    Nov 4, 2004
    Location:
    Ringgold, GA
    Guess I missed something, thought you already had a 427 sb from several months back. That should make the tire bill go up.
     
    buick skylark and muscl car like this.
  6. G72Zed

    G72Zed Veteran Member

    Messages:
    1,820
    Likes Received:
    675
    Joined:
    Sep 8, 2015
    Location:
    Canada
    I thought you just built/finished your 600hp/ 406ci? I guess your looking for more TQ, (lol, aren't we all most Times). Or, your not happy with the dyno results and 1/4 mile performance & ET.

    I would look into the final compression with your new 434 build, given the regular HG cc with flat tops and a 64cc your 406 was around 11.55CR, if everything is staying the same, your up to 12.25CR, unless your on race gas, then no worries.

    Are you good with using an oil ring support rail with the short 1.000CH pistons. I like to stay away from those if possible, just difficult with that short of a CH piston.
     
    buick skylark and muscl car like this.
  7. dcozzi

    dcozzi Veteran Member

    Messages:
    3,691
    Likes Received:
    811
    Joined:
    May 1, 2002
    Location:
    Phoenix, AZ
    You will be nice and lopey with that cam. I have a .568 hyd. roller in my 406 and it is pretty rowdy already.
     
    buick skylark and muscl car like this.
  8. CorkyE

    CorkyE Veteran Member Lifetime Gold Member

    Messages:
    10,843
    Likes Received:
    658
    Joined:
    Nov 4, 2004
    Location:
    Ringgold, GA
    With 112* LSA, are you looking at EFI in the future? Certainly the best thing I've done to my engine.
     
    buick skylark and muscl car like this.
  9. frankz

    frankz Veteran Member

    Messages:
    2,118
    Likes Received:
    25
    Joined:
    Aug 24, 2009
    Location:
    Illinois
    If I were to build a small block from scratch I would go 18 degree for Sure.
     
    buick skylark and muscl car like this.
  10. G72Zed

    G72Zed Veteran Member

    Messages:
    1,820
    Likes Received:
    675
    Joined:
    Sep 8, 2015
    Location:
    Canada

    A 434 SBC with a 4 inch stroke and a 251 dur @ .050 cam with a wide 112 LSA, I say it will be on the tamer side of idle characteristics, and the wrong cam, but if going FI, it may be great.

    The "best" overall "mild" cam I have used is 252 @ .050 on a 112 lsa, w/10.5cr, but is 100 cubic inches smaller?
     
    muscl car likes this.

Share This Page