is this normal wear for a piston skirt?
#21
there weiscos, checked the bores today, some spots were opened up to about .0065 from .005 at the buildup. motor had 4k on it and 40-50 dyno pulls on it over 3 seasons.
#22
Mine was the same after less than 5k. Pistons very badly worn because of the long stroke and lose bore clearance. Wiseco's running a whopping 7thou clearance, which I'm sure didnt help at all.
I'm rebuilding and destroking.
Although my previous JE pistons in a different build didnt suffer the same problem. They did had some marks, but nothing worth worrying about and it had ran for around 10k before I destroyed it.