SBF FT Piston Set 4.030 Bore -5.2cc

Set of 8 RaceTec forged pistons for Small Block Ford 302/351W 20° engines, specifically for 331/5.4 CID. These pistons feature a flat top with a -5.2cc crown volume, a 4.030-inch (102.36mm) bore, 3.250-inch (82.55mm) stroke, and are designed for a 5.4-inch rod length. Made from 2618 forged material, they are suitable for mild blown or nitrous applications. They have CNC machined ring grooves that accept 1.5mm, 1.5mm, and 3.0mm rings (rings sold separately) and a 0.927-inch wrist pin. Valve pockets are machined for oversized valves and high-lift cams, and they include top ring land gas distribution grooves.