Speed Pro Speed Pro Piston Forged 4.000" Bore 5/64 x 5/64 x 3/16" Ring Grooves - Minus 6.1 cc Falcon Transmission absolute barometric pressure

absolute barometric pressure

Constructed of a die-cast

thread pitch to thread pitch

175-350 lb/in Spring Rate

Speed Pro Speed Pro Piston Forged 4.000" Bore 5/64 x 5/64 x 3/16" Ring Grooves - Minus 6.1 cc Falcon Transmission absolute barometric pressureFully updated skirt profiles Exclusive DUROSHIELD skirt coating. DUROSHIELD provides scuff resistance, reduced bore clearances and enhanced ring sealing. SPEED PRO POWERFORGED pistons are built to stringent specifications with a precision CNC machined dome and skirts and microfinished ring grooves. The manufacturing process ensures that piston weights within a boxed set will not vary more than 4 grams and that skirt sizes are matched to within 0.