Page 1 of 2 12 LastLast
Results 1 to 10 of 14

Thread: 400 sbc max bore size?

  1. #1
    Senior Member DYNO TECH
    Join Date
    Aug 2007
    Location
    Colebrook Connecticut
    Posts
    425

    400 sbc max bore size?

    whats the maximum bore size for a sbc 400?

  2. #2
    Senior Member RACING JUNKIE
    Join Date
    Mar 2003
    Location
    Fountain,MICHIGAN
    Posts
    856

    400

    GM Block
    Most are Junk @ 4.125!
    But,if i were to use a Stock Block,i would have it Sonic Checked!Good $$$ Spent,that way you know where the Bores are?
    Later
    G 8)

  3. #3
    Senior Member RACING JUNKIE jmarksdragster's Avatar
    Join Date
    Jul 2007
    Location
    Florida
    Posts
    635
    Try to keep the blocks to .030. You may be able to go more, have the block sonic tested over .030.

  4. #4
    Senior Member EXPERT BUILDER
    Join Date
    Jul 2005
    Location
    Wylie,Texas
    Posts
    276
    bbchevy Stanard bore is 4.125

  5. #5
    Senior Member EXPERT BUILDER
    Join Date
    Nov 2003
    Location
    NORTHEAST
    Posts
    290
    Quote Originally Posted by davis419b
    bbchevy Stanard bore is 4.125
    I thought standard Chevy BBC bore was 4.250 maybe not!!!!!!!
    WWW.CNCBLOCKSNE.COM
    IS A DIVISION OF
    HINKSON AUTOMOTIVE
    RESEARCH & DEVELOPMENT

    CARL HINKSON 207-892-7215
    EMAIL [email protected]

  6. #6
    Senior Member EXPERT BUILDER
    Join Date
    Jul 2005
    Location
    Wylie,Texas
    Posts
    276
    hink , the topic was for a sbc 400 ! bbchevy was the one who posted that 4.125 was max bore for a 400 sbc.

  7. #7
    Senior Member RACING JUNKIE
    Join Date
    Mar 2003
    Location
    Fountain,MICHIGAN
    Posts
    856

    400

    I was NOT saying that the 400 SBC had a Max bore of 4.125!
    What i said was MOST of them @ 4.125 are ().
    Maybe this will Help?Maybe,NOT?
    Later
    G 8)

  8. #8
    Senior Member EXPERT BUILDER
    Join Date
    Jul 2005
    Location
    Wylie,Texas
    Posts
    276
    WHATEVER !

  9. #9
    Senior Member DYNO TECH
    Join Date
    Aug 2007
    Location
    Colebrook Connecticut
    Posts
    425
    hmm im confused now lol
    I got a buddy that is attempting to bore out his 400 sbc .060 over.
    is that acceptable?

  10. #10
    Senior Member EXPERT BUILDER
    Join Date
    Nov 2003
    Location
    NORTHEAST
    Posts
    290
    Quote Originally Posted by rabiddawg
    hmm im confused now lol
    I got a buddy that is attempting to bore out his 400 sbc .060 over.
    is that acceptable?
    Only a sonic test will tell you if can be bored out .060 over
    WWW.CNCBLOCKSNE.COM
    IS A DIVISION OF
    HINKSON AUTOMOTIVE
    RESEARCH & DEVELOPMENT

    CARL HINKSON 207-892-7215
    EMAIL [email protected]


Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Copyright © 2005-2016 RacingJunk.com All Rights Reserved.

Designated trademarks and brands are the property of their respective owners. Use of this Web site constitutes acceptance of the RacingJunk.com
Terms of Use, Classifieds Disclaimer, Privacy Policy, and Cookie Policy