5.7L Forged Piston Set, -12cc Dish, 3.927-Inch Bore

The DSS Racing 6723-3927 FX Series forged piston set is engineered for high-performance 5.7L Small Block Mopar Hemi Gen III engines. These pistons feature a -12cc dish top and are designed for a 3.927-inch bore, offering a 1.210-inch compression height and a 0.945-inch pin diameter. Constructed from premium aircraft-spec 2618 alloy, these pistons are forged and machined in the USA, ensuring durability and reliability for demanding applications. They are suitable for use with Blower, Turbo, and NOS setups, and include features such as drilled, forced wrist pin oiling, drilled bottom ring land intersecting oil groove drain-backs, and larger, deeper CNC machined valve reliefs for aggressive cylinder head and cam combinations. This piston set is designed for a zero deck height (9.242" TDC assembly height) and offers approximate compression ratios of 9.37:1 (65cc chamber), 8.57:1 (74cc chamber), and 7.78:1 (85cc chamber). Options are available for piston series, including FX-1 (4032 Alloy), FX-2 (2618 Alloy), and FX-3 (2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs), as well as piston ring kit options (with or without DSS Racing rings).