Holley 556-121 Cam Sync Kit for Big Block Chevy with Raised Cam

The Holley 556-121 Cam Sync Kit is designed for Big Block Chevy applications with a camshaft raised 0.600 to 1 inch. It provides a cam position sensor setup with a 12 mm x 1.00 thread, supporting integration with Holley EFI kits.

This kit includes the target and bracket, along with a flying magnet for cam position sensing. The components are specified for use with the raised-cam configuration described by Holley, providing the necessary parts for this application.

Use the Holley 556-121 Cam Sync Kit when configuring a compatible Big Block Chevy engine with a raised camshaft and Holley EFI system. Verify application requirements before installation to ensure the kit matches the engine and EFI configuration.

Features:

• Application: Designed for Big Block Chevy engines
• Camshaft Height: For camshaft heights raised 0.600 to 1 inch
• Thread Size: 12 mm x 1.00 thread
• Included Components: Target and bracket included
• Sensing Method: Flying magnet
• EFI Compatibility: Intended for Holley EFI kits