Quote:
Originally Posted by Ol' Ron
When I built the Bville engine I used a 3 3/4 stroke piston on a 4" crank. The Heads had been domed by Grancor for this. Had very good flow with 9.2 CR. I used .060" piston to head clearance to protect against rod stretch at Hi revs.
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Probably a good idea to have some 'wiggle room' for rod stretch in a high rpm race situation. What type of rod were/are you using?