Speed Pro Speed Pro Piston Forged 4.350" Bore 5/64 x 5/64 x 3/16" Ring Grooves - Plus 0.0 cc 742002 2-3/4 to 3-1/4 in Adjustable

2-3/4 to 3-1/4 in Adjustable Long Sleeve

437" outer diameter

54 in Wide

Wideband Pro

Everything you see is machined from 6061-T6 billet aluminum and polished to a mirror finish a difference in quality you can see from a mile away

Speed Pro Speed Pro Piston Forged 4.350" Bore 5/64 x 5/64 x 3/16" Ring Grooves - Plus 0.0 cc 742002 2-3/4 to 3-1/4 in AdjustableFully 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.