Speed Pro Speed Pro Piston Forged 4.030" Bore 5/64 x 5/64 x 3/16" Ring Grooves - Minus 2.7 cc 931117 KRC Steel Coil-Over Adjustment Wrenches

KRC Steel Coil-Over Adjustment Wrenches are available separately (#KLU8840 & #KLU8842)

5/16" and 3/8" fasteners for most AMC

Includes roller bearing as well as a 6-degree advance/retard

Black / Red Chevy Bowtie Logo

OE factory bushings are known to deflect more than a ¼ inch in turns which equates to almost 1 degree of lost camber and unpredictable handling

Speed Pro Speed Pro Piston Forged 4.030" Bore 5/64 x 5/64 x 3/16" Ring Grooves - Minus 2.7 cc 931117 KRC Steel Coil-Over Adjustment WrenchesFully 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.