− Decrease quantity for Pistons, Forged, Q16, Dome, 4.600 in. Bore, .043 in., .043 in., 3.0 mm. Ring Grooves, Chevy, Big Block, With Power Adder, Set of 8 Quantity + Increase quantity for Pistons, Forged, Q16, Dome, 4.600 in. Bore, .043 in., .043 in., 3.0 mm. Ring Grooves, Chevy, Big Block, With Power Adder, Set of 8 Add to cart