Speed Pro Speed Pro Piston Forged 4.060" Bore 5/64 x 5/64 x 3/16" Ring Grooves - Minus 6.1 cc 35453SMLBK this insert also comes with

this insert also comes with corrosion resistant hardware and a 5-year limited warranty

PRW Industries produces engine components for racing applications such as rocker arms

Sold in precut lengths of 3

75" overall height)

1976-1985 Chevrolet K20

Speed Pro Speed Pro Piston Forged 4.060" Bore 5/64 x 5/64 x 3/16" Ring Grooves - Minus 6.1 cc 35453SMLBK this insert also comes withFully 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.