Speed Pro Speed Pro Piston Forged 4.124" Bore 5/64 x 5/64 x 3/16" Ring Grooves - Plus 21.0 cc MT-ANT-SPRINTER-1 Chevrolet: P20 Series 63 -

Chevrolet: P20 Series 63 - 67 4

Vehicle Applications: Chevrolet Corvette (C5/C6) 97-13

2008-2016 Ford F-350 Super Duty 98

Inside the new cast aluminum housing you'll find an advanced micro-controller that manages the built-in two step rev-limiter

Cometic Gaskets-Cylinder Head GasketSince 1989

Speed Pro Speed Pro Piston Forged 4.124" Bore 5/64 x 5/64 x 3/16" Ring Grooves - Plus 21.0 cc MT-ANT-SPRINTER-1 Chevrolet: P20 Series 63 -Fully 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.