SRP Forged Flat-Top Piston Set - SB Ford 351W - 4.030" Bore, 3.500" Stroke, 5.956" Rod HK-NFC Duration 285 / 293

Duration 285 / 293

A minimum 20-40 degree temperature reduction over copper/brass/lead radiators make these ideal for big inch

Triggering chores are handled by MSD's race-proven

Box can also be fastened to round tubing using clamp-on ballast brackets

Dual 3/4" NPT ports allow for coolant feed from either side of the engine

SRP Forged Flat-Top Piston Set - SB Ford 351W - 4.030" Bore, 3.500" Stroke, 5.956" Rod HK-NFC Duration 285 / 293SRP pistons, manufactured by JE, are "making performance affordable". SRP specific designed forgings eliminate several phases of the manufacturing process, saving time and cutting costs with high volume production. All pistons are machined to accept 1 16" top, 1 16" second and 3 16" oil rings. Sold in sets of eight, with wrist pins and double Spiro Locks. SRP pistons are designed and manufactured using the same knowledge, expertise, and quality