Bored too much??
Reply #4 –
Ive seen them bored .060" before, for stock rebuilds. On a performance build it might have a overheating problem and the cylinder walls are a little thin for high rpms. The short deck height (8.2") causes a lot of side load on the cylinder wall, at high rpms the piston will try to push trough the wall. Ive seen a lot of cheap circle track guys break piston skirts on cast pistons because the side load from the short deck on the 302s.