Cam Sync System - BBC w/Std. Cam Height

The Holley Cam Sync System with BBC (Big Block Chevy) Standard Cam Height is a precision cam position sensor assembly designed for engine control and fuel injection synchronization on carbureted and EFI-equipped big block Chevrolet engines. This flying magnet sensor system uses a 12 mm x 1.00 thread mounting configuration and includes the target wheel and mounting bracket, making installation straightforward for builders and tuners who need accurate camshaft position feedback for proper engine management.

The cam position sensor operates by reading magnetic impulses generated as the target wheel rotates with the camshaft. This data stream allows the engine control unit to synchronize fuel injection timing and spark events precisely to the cam's position, critical for maximizing efficiency and power output in forced induction and high-compression big block applications. The standard cam height specification ensures compatibility with conventional big block Chevrolet valve train geometry without requiring clearance modifications.

This sensor assembly is essential for Holley EFI conversion kits and stand-alone fuel injection systems targeting big block Chevy engines. Engine builders, performance tuners, and hot rod fabricators rely on accurate cam timing feedback to troubleshoot idle quality, cold start performance, and load-dependent fuel delivery. The included target bracket and sensor housing are engineered for the big block engine bay environment, providing reliable operation across temperature and vibration conditions typical of street and race applications.

Holley's cam sync sensors are foundational components in modern engine management, bridging the gap between mechanical camshaft rotation and digital fuel injection logic. Whether upgrading a carbureted big block to EFI or fine-tuning an existing electronic control system, this sensor delivers the positional accuracy required for stable, repeatable engine performance.