Piston and Ring - PowerPak - Forged - 4.030 in Bore - 1.0 x 1.0 x 2.0 mm Ring Groove - Minus 4.00 cc - GM LS-Series - Kit

Piston and Ring - PowerPak - Forged - 3.800 in Bore - 1.0 x 1.0 x 2.0 mm Ring Groove - Minus 4.00 cc - GM LS-Series - Kit

Piston - Flat Top - Forged - 3.800 in Bore - 1/16 x 1/16 x 3.0 mm Ring Grooves - Minus 2.20 cc - GM LS-Series - Set of 8

Piston and Ring - LS Standard Stroke - Forged - 3.905 in Bore - 1.2 x 1.2 x 3.0 mm Ring Groove - Minus 3.20 cc - GM LS-Series - Kit

Piston and Ring - LS Standard Stroke - Forged - 4.005 in Bore - 1.2 x 1.2 x 3.0 mm Ring Groove - Minus 11.00 cc - GM LS-Series - Kit

Piston and Ring - LS Standard Stroke - Forged - 4.030 in Bore - 1.2 x 1.2 x 3.0 mm Ring Groove - Minus 3.20 cc - GM LS-Series - Kit