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 that require accurate camshaft position feedback. This sensor is particularly beneficial for builders and tuners who are integrating Holley EFI kits into street engines, race applications, and carbureted-to-fuel-injection conversions.

This sensor delivers real-time cam timing data that is essential for proper fuel injection, spark timing, and engine synchronization. The innovative flying magnet target design eliminates the need for a separate reluctor ring, simplifying installation while ensuring reliable signal acquisition across a wide range of engine speeds and operating conditions. The 1/4-20x3/8 thread specification guarantees secure mounting compatibility with Holley EFI systems and aftermarket engine control platforms.

The compact form factor (3.3 x 3.3 x 6.8 inches, weighing approximately 0.24 lbs) allows for flexible mounting in tight engine bay spaces, which is common in retrofit and custom builds. Proper cam position sensing is fundamental to engine stability, preventing lean stumbles on acceleration and drivability issues that arise when the ECU cannot synchronize injection timing. This component is particularly important in high-RPM applications where signal clarity directly impacts engine performance and fuel economy.