Description

Factory Fit engine harnesses are manufactured according to the original General Motors specifications. Each part number is fully assembled, taped and ready to install upon arrival. This harness will plug into the firewall in the factory location, and will follow original routing in the engine compartment. A combination of the engine and front light harness accomplish most functions under the hood of an early GM vehicle.

Engine harness design varied significantly from year to year, but most will contain wiring for the ignition system, starter, heater blower, and temperature/oil pressure sender wires if applicable. Some vehicles used a capillary tube to provide an oil pressure reading, so these will not be included in a wiring harness. On vehicles with ignition points, the circuit feeding the ignition coil was designed with some resistance to extend the life of the ignition point set. Modern electronic ignition systems or High Energy ignition (HEI) systems do not require resistance in the circuit, so it is recommended that a harness modified for HEI be ordered if the ignition system has been upgraded. In most cases these harnesses are available in our catalog and feature unique part numbers.

Please consult your factory service manual to determine if the engine harness for your vehicle will contain the circuits required for your project, or give our Sales team a call to confirm part numbers.

Engine Harness Oil Pressure Jumper W/Gau For

Pontiac Firebird 1978
Pontiac Firebird 1977
Pontiac Firebird 1979
Pontiac Fullsize 1978
Pontiac Grand Am 1977
Pontiac Grand Prix 1977
Pontiac Lemans 1977

ENGINE HARNESS OIL PRESSURE JUMPER W/GAUGES (USED WITH OLDS 350 OR 403 ENG)

Fit Notes

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Instructions

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