Piston - Premium Forged - Forged - 3.790 in Bore - 1.5 x 1.5 x 3.0 mm Ring Groove - Minus 3.00 cc - GM LS-Series - Set of 8

Piston and Ring - Red Series - 3.790 in Bore - 1.0 x 1.2 x 2.8 mm Ring Grooves - Flat Top - Minus 4.20 cc - GM LS-Series - Kit

Piston and Ring - PowerPak - Forged - 4.005 in Bore - 1.0 x 1.0 x 2.0 mm Ring Grooves - Minus 5.80 cc - GM LS-Series - Kit

Pistons and Rings - Pro Tru Street Series - Forged - 3.903 in Bore - 1/16 in x 1/16 in x 3.0 mm Ring Grooves - Plus 4.00 cc - GM LS-Series - Kit

Piston - Street / Strip Flat Top - 4.030 in Bore - 1.2 x 1.2 x 3.0 mm Ring Grooves - Minus 2.0 cc - GM LS-Series - Set of 8

Piston and Ring - PowerPak - Forged - 3.898 in Bore - 1.0 x 1.0 x 2.0 mm Ring Groove - Minus 4.00 cc - GM LS-Series - Kit