The Truth About The Small Block Chevy 400
927 pin diameter, -5cc crown volume, compression ratio 58cc=12.8, 64cc=11.9, 70cc=11.1, 4032 alloy. The pistons are hand-deburred and then coated with dry phosphate to protect against ring micro-welding and pin galling during initial startup.
927 pin diameter, -5cc crown volume, compression ratio 58cc=12.8, 64cc=11.9, 70cc=11.1, 4032 alloy. The pistons are hand-deburred and then coated with dry phosphate to protect against ring micro-welding and pin galling during initial startup.