[.020 over size 3.800 bore]

This item is for a set of 8 flat top with 2-valve relief pistons and a matching moly piston ring bundle set compatible with 2010-2015 GM applications using either the 4.8L or 5.3L LS-series V-8 engine requiring flat top with 2-valve relief pistons. These are available in your choice of sizes needed! Please select size needed before placing in Cart! Stroke: 3.267 in. (4.8L), 3.622 in. (5.3L); stock Connecting Rod Length: 6.275 in. (4.8L), 6.098 in. (5.3L); stock, rods NOT included Piston Top Style: Flat top with 2-valve reliefs Compression Height: 1.339 in. Piston Material: Aluminum alloy Wrist Pin Diameter: .943 in.; pins included Wrist Pin Style: Floating; pin clips included Ring Land Sizes: 1.5mm-1.5mm-3.0mm (oil ring); rings included Notes: Coated skirts