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Thread: 400 SBC

  1. #1
    Senior Member DYNO OPERATOR
    Join Date
    Apr 2008
    Posts
    496

    400 SBC

    HOW MANY CUBIC INCHES IS STOCK SBC 400 GOOD FOR,ALREADY AT 406,IT IS THE 4 BOLT MAIN BLOCK.

  2. #2
    Senior Member SENIOR BUILDER
    Join Date
    Apr 2009
    Location
    odessa texas
    Posts
    103
    not realy good for much more there realy thin blocks and tend to crack and stroking it would put more stress on it

  3. #3

    Re: 400 SBC

    Quote Originally Posted by JEFF69Z28
    HOW MANY CUBIC INCHES IS STOCK SBC 400 GOOD FOR,ALREADY AT 406,IT IS THE 4 BOLT MAIN BLOCK.

    Built a .040 over 3.875 stroke 422 c.i...still going..But it was a 2 bolt That I converted to a splayed 4 bolt and filled.The factory 4 bolts arent that strong.Suggest a Dart SHP...

    A stock 400 block can go with as much as a 4 " stroke 434...But its a gamble on how long it will last.Some do some dont.Friends last 3 years before it cracked down the cam tunnel/valley.

  4. Racing Junk


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