Speed Pro Speed Pro Piston Forged 4.390" Bore 5/64 x 5/64 x 3/16" Ring Grooves - Minus 22.0 cc Heat Barrier trucks and more

trucks and more

Sold as a kit (6pcs)

Available separately

The mandrel bolt is then connected to the mandrel – not to the crankshaft – to reduce engine harmonics (helps prevent loosening or breaking)

The pieces are finished with stylish

Speed Pro Speed Pro Piston Forged 4.390" Bore 5/64 x 5/64 x 3/16" Ring Grooves - Minus 22.0 cc Heat Barrier trucks and moreFully 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.