Manley Chevrolet LS Piston Set - 4.125in Bore 1.065in CH, -20.00 CC

The Manley Performance 566400C-8 pistons are Turbo Tuff design, LS forged dish pistons with a 4.125 bore. Machined from high-strength 2618 material for extreme duty, they feature an offset wrist pin, reluctor wheel clearance, increased corner cross-section, and thicker skirt walls. They use a 1.5/1.5/3.0mm ring package (rings not included) and include round wire locks, forced pin oiling, pressure balance groove, and pin-fitted extreme duty 9310 series .210" wall wrist pins. These pistons are for Chevrolet LS-1, LS-2, LS-3, LS-6, LS-7, and LS-92 engines, with a 4.125" bore, 4.100" crankshaft stroke, and 6.125" rod length. The 4.125" bore is standard for LS7 engines; other LS engines require boring to 4.125" for proper fitment. Intended for racing/competition use only.