Mahle Motorsports Pistons 930217800: GM LS PowerPak Piston & Ring Kits
LS1/LS2/LS6 Chevy
LS1/LS2/LS6 Chevy PowerPak Piston & Ring Kit Forged 4032 High Silicon Low Expansion Aluminum Alloy Bore: 3.800 in. Stroke: 3.622 in. Pin Diameter: 0.945 in. -4.2 cc Dome Volume Compression Ratio @62 cc: 9.8:1