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Holley EFI 556-120 Engine Camshaft Position Sensor

Name: Holley EFI 556-120 Engine Camshaft Position Sensor
Brand: HOLLEY EFI
SKU: 145001213
Price: 377.95 USD
Availability: InStock

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Key item features

Engine Compatibility: Specifically designed for Big Block Chevy engines featuring a +.400 inch raised cam height and external, dry timing-belt, cam drive systems like Jesel.
EFI Integration: Provides a plug-and-play cam position signal for Holley EFI systems, and is also compatible with other EFI systems that accept a digital, square-wave cam input.
Cam Sync Function: Essential for sequential fuel injection, this sensor supplies the ECU with the necessary cam sync signal to identify cylinder #1 or the first cylinder in the firing order.
Mounting Versatility: The bracket assembly offers up to five mounting locations, accommodating various cam-drive systems and front accessory drive configurations.
Signal Type: Delivers a digital, square-wave cam input signal, ensuring precise communication with compatible Electronic Fuel Injection systems.

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Specs

Vehicle make
Chevrolet
Vehicle model
Big Block
Compatibility
GM's popular LS engine
Compatible cars
Big Block Chevy engines
Vehicle fitment type
Specific
Brand
HOLLEY EFI

Current price is $377.95

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About this item

Product details

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

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).
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 in. raised cam height & (Jesel or similar) external, dry timing-belt, cam drive systems.;

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

info:

We aim to show you accurate product information. Manufacturers, suppliers and others provide what you see here, and we have not verified it.

Specifications

Vehicle make

Chevrolet

Vehicle model

Big Block

Compatibility

GM's popular LS engine

Compatible cars

Big Block Chevy engines

Warranty

Warranty information

Manufacturers Limited 90 Day Warranty

Please be aware that the warranty terms on items offered for sale by third party Marketplace sellers may differ from those displayed in this section (if any). To confirm warranty terms on an item offered for sale by a third party Marketplace seller, please use the 'Contact seller' feature on the third party Marketplace seller's information page and request the item's warranty terms prior to purchase.

Warranty url

https://www.nosoemparts.com/pages/returns

Warnings

Warning Text

California Proposition 65

WARNING: Cancer and Reproductive Harm - www.P65Warnings.com

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Product	Viewing this item Holley EFI 556-120 Engine Camshaft Position Sensor current price $377.95 Holley EFI 556-120 Engine Camshaft Position Sensor	Holley EFI 570-348 J4 CONNECTOR KIT current price $54.05 Holley EFI 570-348 J4 CONNECTOR KIT	Holley EFI 556-114 Engine Camshaft Position Sensor current price $357.95 Holley EFI 556-114 Engine Camshaft Position Sensor	Holley EFI 570-241 Electrical Pin Connector current price $26.95 Holley EFI 570-241 Electrical Pin Connector	Holley EFI 570-344 J1B CONNECTOR KIT current price $54.05 Holley EFI 570-344 J1B CONNECTOR KIT	Holley EFI 534-10 Engine Coolant Temperature Sensor current price $53.05 Holley EFI 534-10 Engine Coolant Temperature Sensor	Holley EFI 558-220 GDI Sub Harness - Early LTx Engine current price $152.95 Holley EFI 558-220 GDI Sub Harness - Early LTx Engine

Comparison Chart:
Vehicle make	ChevroletHolley EFI 556-120 Engine Camshaft Position Sensor	-Holley EFI 570-348 J4 CONNECTOR KIT	ChevyHolley EFI 556-114 Engine Camshaft Position Sensor	FordHolley EFI 570-241 Electrical Pin Connector	GMHolley EFI 570-344 J1B CONNECTOR KIT	HolleyHolley EFI 534-10 Engine Coolant Temperature Sensor	GMHolley EFI 558-220 GDI Sub Harness - Early LTx Engine
Vehicle model	Big BlockHolley EFI 556-120 Engine Camshaft Position Sensor	570-348Holley EFI 570-348 J4 CONNECTOR KIT	Big BlockHolley EFI 556-114 Engine Camshaft Position Sensor	CoyoteHolley EFI 570-241 Electrical Pin Connector	LSHolley EFI 570-344 J1B CONNECTOR KIT	534-10Holley EFI 534-10 Engine Coolant Temperature Sensor	LTxHolley EFI 558-220 GDI Sub Harness - Early LTx Engine
Compatibility	GM's popular LS engineHolley EFI 556-120 Engine Camshaft Position Sensor	J4 CONNECTOR KITHolley EFI 570-348 J4 CONNECTOR KIT	-Holley EFI 556-114 Engine Camshaft Position Sensor	FORD ENGINESHolley EFI 570-241 Electrical Pin Connector	J1B CONNECTOR KITHolley EFI 570-344 J1B CONNECTOR KIT	-Holley EFI 534-10 Engine Coolant Temperature Sensor	Early GM Gen V LTx EnginesHolley EFI 558-220 GDI Sub Harness - Early LTx Engine
Vehicle fitment type	SpecificHolley EFI 556-120 Engine Camshaft Position Sensor	SpecificHolley EFI 570-348 J4 CONNECTOR KIT	SpecificHolley EFI 556-114 Engine Camshaft Position Sensor	SpecificHolley EFI 570-241 Electrical Pin Connector	SpecificHolley EFI 570-344 J1B CONNECTOR KIT	SpecificHolley EFI 534-10 Engine Coolant Temperature Sensor	SpecificHolley EFI 558-220 GDI Sub Harness - Early LTx Engine