SBC/BBC Cam Locking Plate

The SBC/BBC Cam Locking Plate from COMP CAMS is an essential component for serious engine builders and performance mechanics working with small-block and big-block Chevrolet platforms. This precision-engineered locking plate secures the camshaft during installation and initial engine startup, preventing unwanted cam rotation that could compromise valve timing and engine integrity. Whether you're assembling a street performance build, restoration project, or high-RPM racing engine, this locking plate ensures your cam stays indexed correctly throughout the critical break-in period.

Engineered by COMP CAMS, a leader in camshaft and valvetrain technology, this locking plate works in conjunction with your camshaft to maintain proper timing relationships before the engine runs under load. The compact design—measuring just 2.2 x 0.8 x 4 inches and weighing a mere 0.11 lbs—allows for easy installation without interfering with surrounding engine components. Its straightforward mechanical operation locks the cam in place, eliminating the risk of timing drift during startup and protecting your carefully tuned valve events from being compromised by mechanical slip.

This locking plate is compatible with both small-block and big-block Chevrolet engines, making it a universal solution for SBC and BBC builds regardless of displacement or configuration. Installation is straightforward for any mechanic familiar with camshaft installation procedures—simply position the plate during initial cam setup and remove once the engine is broken in and operating under normal load. COMP CAMS' reputation for manufacturing precision valvetrain components means this locking plate meets the exacting standards required for reliable performance in both street and competition engines.