Pontiac Grand Prix Engine Piston Replacement

1 Piston 3 Ring Piston 1.540 (in) Compression Distance 0.110 (in) Deep x 3.115 (in) Diameter Recess Cast Iron with 8.5 :1 Compression Ratio Ring Groove Widths: 5/64 (in) , 5/64 (in) , 3/16 (in) Sold Individually Standard

1 Piston 3 Ring Piston 0.098 (in) Deep x 2.771 (in) Diameter Recess Hypereutectic Alloy Piston with 4 Valve Reliefs Clips Not Included Ring Groove Widths: 5/64 (in) , 5/64 (in) , 3/16 (in) DUROSHIELD Skirt Coated Piston Designed for Performance or Regular Duty Operation with Machined Circlip Grooves Sold Individually Standard