Speed Pro Speed Pro Piston Forged 4.155" Bore 5/64 x 5/64 x 3/16" Ring Grooves - Minus 18.0 cc 3552024-23- M For applications up to 450

For applications up to 450 HPProudly made in the USA since 1971

the chrome plating is guaranteed for life not to rust

Wire functions are labeled every 3 to 5 inches

ground flat

Pit Stop USA offers Moroso Spark Plug Boot Protectors - High Temperature - Black (Set of 4) 71977 at low everyday prices

Speed Pro Speed Pro Piston Forged 4.155" Bore 5/64 x 5/64 x 3/16" Ring Grooves - Minus 18.0 cc 3552024-23- M For applications up to 450Fully 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.