Speed Pro Speed Pro Piston Forged 4.280" Bore 5/64 x 5/64 x 3/16" Ring Grooves - Plus 16.8 cc RG40003M McLeod Hydraulic Throwout Bearings

McLeod Hydraulic Throwout Bearings

180 in Thick

Kit comes with drill bit linkage and hardware

Duration 245 / 254

Speed Pro Speed Pro Piston Forged 4.280" Bore 5/64 x 5/64 x 3/16" Ring Grooves - Plus 16.8 cc RG40003M McLeod Hydraulic Throwout BearingsPOWERFORGED 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