Speed Pro Hypereutectic Piston 4.060" Bore 5/64 x 5/64 x 3/16" Ring Grooves Minus 16.0 cc - Coated Skirt 4122SMLBK swap-out installation utilizing existing metering

swap-out installation utilizing existing metering blocks

this kit has everything that you need to limit the cam timing of your '07-'08 GEN IV and '14+ LT1 to 22 degrees

It comes fully assembled with wire leads that you can connect to your existing wiring and is completely sealed from the elements for trouble free performance

6 mm Male Thread

For Old Style Crank Triggers

Speed Pro Hypereutectic Piston 4.060" Bore 5/64 x 5/64 x 3/16" Ring Grooves Minus 16.0 cc - Coated Skirt 4122SMLBK swap-out installation utilizing existing meteringSophisticated "barrel" profiles help optimize oil wedge between skirt and wall. Piston skirts protected by next gen DUROSHIELD coating. TAC ring groove geometry Weight matched to + 2 grams. Machined valve reliefs and circlip grooves; LR 63 lock rings for floated applicationsFrom pistons to engine bearing components, Speed Pro offers an array of performance engine parts. You can rely on Speed Pro for industry leading performance engine technologies,