Inspecting an engine I bought.New Mega block 4.32 bore Ross pistons
.0055/.006 skirt clearance.
Engine has been sitting probably 10 years. Turns freely.
Anyway.pulled piston to check clearances and found this:
Pan is squeeky clean. Bore measures good all the way down,no burr at the bottom,wrist pin free.
Has about 1,000 street miles,low compression small hyd.cam.

It looks like either tight at bottom,is not.
Burr on edge,,no
Tight wrist pin,no.

piston scuff.jpgbore scuff top.jpgBottom Bore scuff.jpg
Last edited by 6bblFLASH; 05/17/18 06:35 PM.
70` Cuda`,440 6BBL Jerico,Dana 4.56 Still on 93 Pump Gas
9.87 @ 136/1.31-60ft.`09 Mopar Nationals PASSON PERFORMANCE "Stick-Shift" Champ!
2013 StickShift Challenge Winner@ Mopar Nationals!