Results 1 to 7 of 7

Thread: bbc used piston question

  1. #1
    Senior Member SENIOR BUILDER
    Join Date
    Nov 2007
    Location
    indiana
    Posts
    123

    bbc used piston question

    thinking about buying a set of used pistons, they are keith black 787 my motor is a stock crank and rods open chamber heads my question is that on kb website it shows these with a 4.25 stroke and 6.385 rod can i still use with a 4 in stroke and 6.135 rod?
    if something goes wrong there is always the cooler!!!

  2. #2
    Senior Member RACING JUNKIE BEAST477's Avatar
    Join Date
    Feb 2007
    Location
    Michigan
    Posts
    1,908
    No. Your piston will be .500 down in the cyl at TDC if I did the #'s right.
    BEAST477






    Only a rich man can afford to use cheap parts.

    http://www.racingjunk.com/profile/177549

  3. #3
    Senior Member SENIOR BUILDER
    Join Date
    Nov 2007
    Location
    indiana
    Posts
    123
    k but if a guy picks them up for 125 is it worth finding a set of 6.535 rods?
    if something goes wrong there is always the cooler!!!

  4. #4
    Senior Member RACING JUNKIE BEAST477's Avatar
    Join Date
    Feb 2007
    Location
    Michigan
    Posts
    1,908
    You would still be down in the cyl and I forgot in my first post crank throws to piston skirt clearance might still be an issue.
    BEAST477






    Only a rich man can afford to use cheap parts.

    http://www.racingjunk.com/profile/177549

  5. #5
    Senior Member SENIOR BUILDER
    Join Date
    Nov 2007
    Location
    indiana
    Posts
    123
    ok thanks for saving me some cash
    if something goes wrong there is always the cooler!!!

  6. #6
    Senior Member RACING JUNKIE BEAST477's Avatar
    Join Date
    Feb 2007
    Location
    Michigan
    Posts
    1,908
    No problem. If you have a reputible engine builder close by that you trust you can check with him also.
    BEAST477






    Only a rich man can afford to use cheap parts.

    http://www.racingjunk.com/profile/177549

  7. #7
    Senior Member SENIOR BUILDER
    Join Date
    Dec 2005
    Posts
    117
    really good question,

    and even better answers! Solid!!!!!!!!

    unless you have a good use, or want to put them on the shelf for later.....pass........


Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Email us - Support@RacingJunk.com
Call us - 866.326.9227
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