Speed Pro Speed Pro Piston Forged 4.160" Bore 5/64 x 5/64 x 3/16" Ring Grooves - Minus 6.7 cc R060015XL Intended for use on N/A

Intended for use on N/A or forced induction engines in the 6

durability and control

Carb pad height: 3

Chevrolet: K30 77 - 85 5

Speed Pro Speed Pro Piston Forged 4.160" Bore 5/64 x 5/64 x 3/16" Ring Grooves - Minus 6.7 cc R060015XL Intended for use on N/AFully 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.