COMP Cams Magnetic Deck Checker Underwear Reliable Ratchet Shift Action

Reliable Ratchet Shift Action

5" diameter

and retracts out of sight when the doors close for improved ground clearance

Kit includes a 5/8"-18 x 3" bolt and 4 spacers (

COMP Cams Magnetic Deck Checker Underwear Reliable Ratchet Shift ActionTo calculate true compression ratio it's necessary to measure the distance between the deck surface of the block and the piston deck. Our machine aluminum deck checker incorporates magnets to hold itself firmly to the block for simple and accurate measurements. Mount a dial indicator in the center for deck height or in each end to check piston rock. Our magnetic deck checker allows for the easy mounting of a dial indicator to check piston travel.