The official FABO machinist/member collaboration, busted 340 thread

autoxcuda said
Do the pistons look new?

Can you tell if the piston and cylinder wall scuffing is from recent debris in oil are there before startup?

The pistons definitely dont look new for a engine with a supposed 80 miles on it. The scuffing is probably debris, but the mess at the top was probably poor honing of a rusted bore