Speed Pro Speed Pro Piston Forged 4.080" Bore 5/64 x 3/32 x 3/16" Ring Grooves - Minus 10.0 cc RCI 11/32 in Valve Stems

11/32 in Valve Stems

For OE replacement

Can be used on Diesel engines requiring performances

1967-1970 Buick Wildcat

1-1/8 in Sector Shaft

Speed Pro Speed Pro Piston Forged 4.080" Bore 5/64 x 3/32 x 3/16" Ring Grooves - Minus 10.0 cc RCI 11/32 in Valve StemsFully 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.