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Ignitions and Electrical› Distributors, Magnetos and Crank Triggers

Holley

Cam Sync Kit - BBC w/ +.400 Raised Cam

$425.95 $399.95 Save $26.00

SKU: H00E 556-120

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In Stock
Ships by Aug 3
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Non-Returnable Item
INSTALL DIFFICULTY
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Moderate — 2–4 hours

Description

Part #: 556-120

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).

Features:

  • Fits Big Block Chevy Engines w/jesel and similar external, dry timing-belt, cam drive systems
  • Designed to provide a plug-&-play cam position signal to Holley EFI systems; Also 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

Big Block Chevy engines with a +.400" raised cam height & (Jesel or similar) external, dry timing-belt, cam drive system

MIA's Description

A cam sync signal is required to run sequential fuel injection, which tells the ECU which cylinder is cylinder #1 (or the first cylinder in the firing order as entered in the software). 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. The bracket assembly can be mounted in up to five locations to accommodate various cam-drive systems and front accessory drive configurations.

Fitment

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Specifications

BrandHolley
Part NumberH00E 556-120
Weight0.6 lb

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Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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