Piston - AutoTec - Dished - Forged - 4.030 in Bore - 1.5 x 1.5 x 3.0 mm Ring Grooves - Minus 20.70 cc - GM LS-Series - Set of 8

Piston - AutoTec - Dished - Forged - 4.070 in Bore - 1.5 x 1.5 x 3.0 mm Ring Grooves - Minus 13.20 cc - GM LS-Series - Set of 8

Piston - AutoTec - Dished - Forged - 4.070 in Bore - 1.5 x 1.5 x 3.0 mm Ring Grooves - Minus 22.70 cc - GM LS-Series - Set of 8

Piston - AutoTec - Dished - Forged - 4.075 in Bore - 1.5 x 1.5 x 3.0 mm Ring Grooves - Minus 13.40 cc - GM LS-Series - Set of 8

Piston - AutoTec - Dished - Forged - 4.075 in Bore - 1.5 x 1.5 x 3.0 mm Ring Grooves - Minus 22.90 cc - GM LS-Series - Set of 8

Piston - AutoTec - Dished - Forged - 4.125 in Bore - 1.5 x 1.5 x 3.0 mm Ring Grooves - Minus 25.00 cc - GM LS-Series - Set of 8