22-02-2022, 12:53 PM
20 thou might be correct for an original 1 5/16 crank at 6000 revs. I don’t know, not done that for years. The 1 1/2 cranked race engines I’ve built all have the piston crown level with the top of the block. 30+ years since the first one and I’ve not had any problems.
Alan Fairless