For those of you running forged pistons, is piston expansion something I need to be concerned about? Did you increase your cylinder wall clearance?
Thanks, that was my next question. So for example I assume the Ross pistons for the stock 91.1 mm bore account for the needed extra clearance right?For the most part, a forged piston will call for a larger skirt to wall clearance than a stock cast piston due to growth. Most forged pistons call for 4-5 thou. MUCH looser than stock cast pistons. BUT, some forged pistons are made with that in mind, meaning a stock bore replacement forged will drop in AND give you the 4-5 thou recommended.