Specs
Bore Diameter82.5mm (STD)
Compression Ratio8.5:1
Rod Length5.669in / 144mm
Stroke92.8mm Standard
PinH-13 .827in x 2.250in x .225in
NoteRequires Aftermarket Rods non-tapered 21mm Pin

Piston Features:
Gen 1-3 Applications
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
Side gas ports for better ring seal
Ratios figured for 83.5mm x .035 head gasket @ 8.661 Deck Height
Top ring down dimension: .250″
Premium 8620 .180W wrist pins chamfered for roundwire locks included
Premium 1.0mm x 1.2mm x 2.8mm ring package included
Over-sized valve pockets – for larger than stock valve sizes
Valve pocket depth: 0.125″ intake and 0.095″ exhaust
2618 material for High HP/Boost applications