Forged Piston Set, 4.040" Bore, 13.2cc Dish

The Sealed Power L2446F40 piston set is engineered for Ford 351 Windsor V8 engines, offering a .040 inch overbore with a 4.040 inch bore diameter. The pistons feature a dish top with a volume of 13.2cc, intended to influence compression ratio in conjunction with cylinder heads and gaskets. Key specifications include a pin diameter of 0.912 inches and specific ring groove dimensions: 5/64 inch for both the top and second compression rings, and 3/16 inch for the oil ring. These dimensions ensure compatibility with standard or performance piston ring sets. The forged construction provides enhanced strength and resistance to heat and pressure compared to cast pistons, making them suitable for modified or performance-oriented engine builds.