FORD 351W ROD 5.956 SOLID DOME 5CC 2V KB HYPER PISTON SET

The United Engine & Machine KB314.STD is a set of eight hypereutectic pistons designed for Ford 351W engines with a 4.000-inch bore and 3.500-inch stroke. These pistons feature a dome style with two valve reliefs and a 1.774-inch compression height, contributing to a 12.4:1 compression ratio with 61cc combustion chambers.

Constructed from a low-expansion 390 alloy with 16% silicon, these pistons allow for tighter piston-to-wall running clearance. They include fully machined head and valve reliefs, triple spiral lock rings, CNC-machined pin bores, an accumulator groove for improved ring seal, machined oil returns, and diamond-finished skirts.