Speed Pro Hypereutectic Piston 4.280" Bore 5/64 x 5/64 x 3/16" Ring Grooves Plus 10.5 cc - Coated Skirt H77403FM BUT this changes the air

BUT this changes the air flow to the intake and can cause poor cylinder distribution and drivability issues

Eliminates the need for aftermarket shoulder type lug nuts and simplifies wheel installation

providing crisp on-tap acceleration at the driver's disposal

88 in seat height

351W or 351C Engine using a Ford Style T5 Transmission

Speed Pro Hypereutectic Piston 4.280" Bore 5/64 x 5/64 x 3/16" Ring Grooves Plus 10.5 cc - Coated Skirt H77403FM BUT this changes the airSophisticated "barrel" profiles help optimize oil wedge between skirt and wall. Piston skirts protected by next gen DUROSHIELD coating. TAC ring groove geometry Weight matched to + 2 grams. Machined valve reliefs and circlip grooves; LR 63 lock rings for floated applicationsFrom pistons to engine bearing components, Speed Pro offers an array of performance engine parts. You can rely on Speed Pro for industry leading performance engine technologies,