Author Topic: 1984 Engine Harness  (Read 201 times)

Offline TB24

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1984 Engine Harness
« on: March 12, 2022, 04:02:13 PM »
Hey all, I am in the process of putting a 350 in my 1984 K10 Silverado 4 speed that came with a 305.

I have been looking for engine harnesses and all catalogs end at 1982. I am wondering why that is and if an 82 harness would work for my application. This will be a very stock rebuild. Iíd like to use cruise control and everything original except the electronic spark control.

I just canít figure out why everything ends at 82. Thanks everyone.
73 K10 Custom 350/sm465/np208

84 K10 Silverado 350/sm465/np208

Offline AZ4X4SQBDY

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Re: 1984 Engine Harness
« Reply #1 on: March 19, 2022, 04:09:30 PM »
I used the '82 harness that was available in my '85 K10, the main difference, if I remember correctly,  is a oil pressure switch that powers the electric choke. I had to open the loom and leave the oil pressure switch connection reach down farther because I used on on the block near the filter not at the distributor. The harness only included the engine sensors, HEI connection, choke, fuel tank gauge and starter wires. It also ran the starter wires down the front of the engine where as most of the TBI's I am a little more familiar with run them in the back.

The ESC and cruise control, I believe are separate harnesses and not available aftermarket.

The board has wiring diagrams that should verify the minor differences
1987 GMC Sierra Classic 4x4 short, fleet, 1985 Chevrolet Silverado 4x4 short, step side, '87 Chevy Silverado short fleet, '91 Dodge Ramcharger LE 4x4,
2005 Porsche Boxster S,1982 Alfa Romeo Spider Veloce