Specs
Bore Diameter93mm (+0.020in Over)
Compression Ratio9.0:1
Rod Length6.011in / 152.7mm
Stroke86.7mm Standard
PinH-13 .905in x 2.500in x .225in

Piston Features:
Piston crowns designed to work with OEM direct injection
3D milling on piston crowns for ready to install finish
Offset pins for quiet operation
Moly skirt coating for friction loss and skirt wear protection
Ratios figured for 3.641 x .040 head gasket
Top ring down dimension: .300″
Premium 8620 .180W wrist pins chamfered for roundwire locks included
Premium 1.5mm x 1.5mm x 3.0mm ring package included
Over-sized valve pockets – for larger than stock valve sizes
Valve pocket depth: 0.090″ intake and .000″ exhaust
2618 material for High HP/Boost applications