GM LS Piston Set 4.075 Bore -22.9cc.

GM LS Piston Set 4.075 Bore -22.9cc. 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