Camshaft Sensor w/Flying Magnet Target 1/4-20x3/8

The Holley Camshaft Sensor with Flying Magnet Target 1/4-20x3/8 (SKU HLY554-127) is a precision engine management component designed for EFI-equipped vehicles requiring accurate camshaft position feedback. This sensor delivers real-time cam timing data essential for proper fuel injection, spark timing, and engine synchronization. The flying magnet target design eliminates the need for a separate reluctor ring, simplifying installation while maintaining reliable signal acquisition across a wide range of engine speeds and operating conditions.

The 1/4-20x3/8 thread specification ensures secure mounting compatibility with Holley EFI systems and aftermarket engine control platforms that follow this industry standard. The flying magnet target technology provides superior signal consistency compared to reluctor-based alternatives, particularly important in high-RPM applications where signal clarity directly impacts engine performance and fuel economy. The sensor's compact form factor (3.3 x 3.3 x 6.8 inches, weighing 0.24 lbs) allows flexible mounting in tight engine bay spaces common to retrofit and custom builds.

This component is essential for builders and tuners integrating Holley EFI kits into street engines, race applications, and carbureted-to-fuel-injection conversions. Proper cam position sensing is fundamental to engine stability, preventing lean stumbles on acceleration, cold-start hesitation, and drivability issues that arise when the ECU cannot synchronize injection timing with actual valve events. The included target magnet simplifies the installation process, reducing setup time on the dyno or during initial tuning.