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Holley EFI

+.400" Raised Cam Sync Kit

Part # 556-120 Be the first to write a review

For Big Block Chevrolet engines

+.400" Raised Cam Sync Kit

In Stock
Free Shipping - Lower 48 US States
Advertised Price $377.95
$340.15
Save $37.80
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4

Emissions

This part is legal for sale or use on Racing Use Only Vehicles

The following vehicles are considered Racing Use Only Vehicles:

  • Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street.

    See Emissions Details
These kits were specifically designed to provide a "plug-&-play" cam position signal to Holley EFI systems, although they may be used with any EFI system which can read a digital, square-wave input cam signal. They are intended for use with Big Block Chevy engines with a +.400" raised cam height and (Jesel or similar) external, dry timing-belt, cam drive systems.

Features:

  • Fits Big Block Chevy Engines w/jesel and similar external, dry timing-belt, cam drive systems
  • Designed to provide a plug-n-play cam position signal to Holley EFI systems
  • Compatible with any EFI system which can read a digital, square-wave cam input signal
  • Bracket assembly can be mounted in up to five locations to accommodate various cam-drive systems and front accessory drive configurations

About Holley EFI

Find standalone EFI for LS, Coyote, Hemi and more at Holley.com. From engine swapping to managing up to 4000 horsepower, we have a solution for every project!

Bolt Hole Quantity2
Brand Holley EFI
CategoryIgnition
ColorBlack
Emission Code4
Grade TypePerformance
Mounting Bracket IncludedYes
Mounting Hardware IncludedYes
Mounting TypeBolt On
Part TypeEngine Camshaft Position Sensor
Product TypeHall Effect Cam Sync
Sub CategorySensors
Wire Quantity3
UPC090127725047
Part Number556-120
4

This part is legal for sale or use on Racing Use Only Vehicles

The following vehicles are considered Racing Use Only Vehicles:

  • Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street.

WARNING: It is against the law to install this part on an Emissions Controlled Vehicle

Holley EFI Dealers
Do you need a custom kit built for your application? Do you need a system installed and tuned? Click here to find the Holley EFI dealer in your area!
Holley EFI Support Forums
Instructions - 199r10801.pdf
A cam sync signal is required to run sequential fuel injection. This tells the ECU which cylinder is cylinder #1 (or the first cylinder in the firing order as entered in the software).
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    *Free Shipping and Handling only offered to the contiguous US on orders over $149, excludes clearance parts and oversized packages.

    Some parts are not legal for use in California or other states with similar regulations.

    +.400" Raised Cam Sync Kit
    +.400" Raised Cam Sync Kit
    Advertised Price $377.95
    $340.15
    Save $37.80