Piston - AutoTec - Forged - Dished - 4.010 in Bore - 1.5 x 1.5 x 3.0 mm Ring Grooves - Minus 20.00 cc - GM LS-Series - Set of 8 Vendor- RACE TEC PISTONS MPN 1000615 State Restrictions Canada Restrictions - NO Notes: 15-Degree 3.622 Stroke 6.125 Rod 1.310 CH AutoTec Series
