Speed Pro Speed Pro Piston Forged 4.080" Bore 5/64 x 3/32 x 3/16" Ring Grooves - Minus 10.0 cc Helmet Side Plate These Grade 8 bolts have

These Grade 8 bolts have a 12 point smaller-than-standard head & flange

Doubles As A Jam Nut

6 AN Straight Female to 6 AN Straight Female

Fitting Screen

Speed Pro Speed Pro Piston Forged 4.080" Bore 5/64 x 3/32 x 3/16" Ring Grooves - Minus 10.0 cc Helmet Side Plate These Grade 8 bolts haveFully 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.