Speed Pro Speed Pro Piston Forged 4.087" Bore 5/64 x 5/64 x 3/16" Ring Grooves - Plus 0.0 cc HS11PAFIA Simply install the Audio Filter

Simply install the Audio Filter inline on the power lead to your component and instantly hear the remarkable results

1978-1984 Chevrolet El Camino

RM60 / RM45 / GMR45

Inside Air

Speed Pro Speed Pro Piston Forged 4.087" Bore 5/64 x 5/64 x 3/16" Ring Grooves - Plus 0.0 cc HS11PAFIA Simply install the Audio FilterFully 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.