Magnetic Deck Checker

The Magnetic Deck Checker from COMP CAMS is a precision dial indicator mount engineered for engine builders, automotive technicians, and performance shops that demand accuracy when measuring deck height and surface variations. This aluminum-constructed tool is essential for anyone performing engine block preparation, cylinder head work, or compression ratio verification where tolerances matter. Whether you're preparing a stock long-block or building a high-performance street engine, deck height measurement is non-negotiable—and this mount ensures your dial indicator readings are repeatable and reliable.

Built from blue anodized aluminum, the Magnetic Deck Checker features a magnetic base system that securely attaches your dial indicator to engine blocks, cylinder heads, and other ferrous metal surfaces without slip or drift during measurement. The robust construction resists the thermal and mechanical stress of the shop environment, while the anodized finish protects against corrosion and wear. The compact footprint—6.4 x 2.7 inches in the working profile—allows access to tight engine bay locations and allows multiple reference points to be checked without repositioning the block or head.

Professional engine builders and machine shops rely on this tool for quality control before final assembly, as deck height variation directly affects compression ratio, gasket sealing, and long-term reliability. The magnetic mount system eliminates the need for cumbersome clamps or manual holding, freeing one hand and improving measurement consistency across multiple test points. Installation is immediate—simply place the magnetic base on any clean ferrous surface, insert your dial indicator, and begin taking precision measurements for bore centerline verification and deck flatness checks.