Speed Pro Speed Pro Piston Forged 4.280" Bore 5/64 x 5/64 x 3/16" Ring Grooves - Plus 0.0 cc YA0828KARTMM13 Spec-Pro Speedometers / Tachometers

Spec-Pro Speedometers / Tachometers

we use our exclusive two-step slow forging process using EV8 stainelss steel on both intake and exhaust valves

Features large 2-1/2'' rubber mounted indicator light

Install the system yourself in a few hours with the help of a fully illustrated easy-to-follow installation manual

Excellent cam for trucks

Speed Pro Speed Pro Piston Forged 4.280" Bore 5/64 x 5/64 x 3/16" Ring Grooves - Plus 0.0 cc YA0828KARTMM13 Spec-Pro Speedometers / TachometersFully 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.