Proper BBC thrust clearance

Discussion in 'PSI Superchargers Tech Questions' started by caseyspradlin, Jun 1, 2015.

  1. caseyspradlin

    caseyspradlin Member

    Joined:
    Sep 9, 2008
    Messages:
    214
    Likes Received:
    0
    Blown BBC with powerglide. Looking for proper crank thrust. 1471 HHR 25%OD. Does block side need to be different from cap side?

    Thanks ITA.
     
    #1
    caseyspradlin, Jun 1, 2015
  2. aj481x

    aj481x Member

    Joined:
    Jan 27, 2004
    Messages:
    976
    Likes Received:
    18
    BBC are rarely hard on thrusts, .004"-.008" is good. It never hurts to put a small chamfer on part line from oil groove to the rear surface.
     
    #2
    aj481x, Jun 1, 2015

Share This Page





XenPorta 2 PRO © Jason Axelrod from 8WAYRUN.COM