Holley Cam Position Sensor 556-121 for Big Block Chevy with 12 mm x 1.00 Thread and Flying Magnet

The Holley Cam Position Sensor Part Number 556-121 is designed specifically for Big Block Chevy engines, providing reliable camshaft position detection essential for optimal engine performance. This sensor features a 12 mm x 1.00 thread, making it compatible with a variety of camshaft configurations. It includes a target and bracket for secure mounting and precise alignment, ensuring accurate readings during engine operation. The flying magnet design enhances sensor responsiveness and durability, contributing to smoother engine timing and improved throttle response. The kit is suitable for use with Holley EFI systems, offering seamless integration into your engine management setup. It accommodates camshaft height adjustments from 0.600 to 1 inch, providing flexibility for custom engine builds and modifications. Constructed with high-quality materials, this sensor is built to withstand the rigors of high-performance applications and ensure long-lasting reliability. Whether you're upgrading your existing EFI system or building a custom engine, this cam position sensor delivers accurate, consistent performance essential for optimal engine tuning and efficiency.

Features:

• Thread Size: 12 mm x 1.00 for versatile installation compatibility

• Includes Target and Bracket for precise sensor alignment

• Flying Magnet Design for enhanced responsiveness and durability

• Adjustable for Camshaft Heights from 0.600 to 1 inch

• Suitable for Big Block Chevy engines and Holley EFI systems