− Decrease quantity for Pistons, Pro Tru Street Pistons, 4.030 in. Bore, Forged, Dome, Please Verify Piston Pin Diameter Before Ordering, Chevrolet, LS, Kit Quantity + Increase quantity for Pistons, Pro Tru Street Pistons, 4.030 in. Bore, Forged, Dome, Please Verify Piston Pin Diameter Before Ordering, Chevrolet, LS, Kit Add to cart