Speed Pro Speed Pro Piston Forged 4.030" Bore 5/64 x 5/64 x 3/16" Ring Grooves - Minus 2.7 cc R07C15W44 Gasoline Only

Gasoline Only

Replaces lubrication lost by wash of dry fuels

Aluminum / Stainless

Spindle Nut Conversion

Manufactured from heavy 4 mil thick plastic

Speed Pro Speed Pro Piston Forged 4.030" Bore 5/64 x 5/64 x 3/16" Ring Grooves - Minus 2.7 cc R07C15W44 Gasoline OnlyFully 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.