Speed Pro Speed Pro Piston Forged 4.280" Bore 5/64 x 5/64 x 3/16" Ring Grooves - Plus 16.8 cc 10203S The HydraMat magnet kits are

The HydraMat magnet kits are designed as a cost effective solution for mounting the Holley HydraMat in the fuel tank or cell

Designed to hug the damper so it is easier to line up the damper and the pointer

Outputs can trigger a relay to activate a shifter

C3-R7 Valve

Speed Pro Speed Pro Piston Forged 4.280" Bore 5/64 x 5/64 x 3/16" Ring Grooves - Plus 16.8 cc 10203S The HydraMat magnet kits arePOWERFORGED Piston 454 Chevy, . 140" Dome 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