Re: Bought bottom end from Boy Go Fast, should I be worried?
Theon that's what I was saying, the piston with the pin higher in the piston would be for a longer rod/stroke engine. The piston on the left is for the shorter stroke engine, put it in a 40mm stroke engine and it will hit the head. Therefore piston pin height has everything to do with stroke.
Your results may not be the same,Greg
Last edited by Greg58; 04-24-2014 at 08:00 PM.