Speed Pro Speed Pro Piston Forged 4.040" Bore 5/64 x 5/64 x 3/16" Ring Grooves - Minus 5.4 cc 4386SMLBK Permatex(R) High Strength Sleeve Retainer

Permatex(R) High Strength Sleeve Retainer

Heat Shroud protects against oil

Panel is 8-1/2" wide x 3-5/8" high

Competing models require you to weld after the net is installed risking damage to your safety equipment

Speed Pro Speed Pro Piston Forged 4.040" Bore 5/64 x 5/64 x 3/16" Ring Grooves - Minus 5.4 cc 4386SMLBK Permatex(R) High Strength Sleeve RetainerFully 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.