Speed Pro Speed Pro Piston Forged 4.280" Bore 5/64 x 5/64 x 3/16" Ring Grooves - Minus 4.9 cc 712002 000 in Rotor Bolt Pattern

000 in Rotor Bolt Pattern

lightweight tubing: 1" square x 3' long

Powdercoated stamped steel

Ford-style solenoid

Thread Gauge

Speed Pro Speed Pro Piston Forged 4.280" Bore 5/64 x 5/64 x 3/16" Ring Grooves - Minus 4.9 cc 712002 000 in Rotor Bolt PatternFully 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.