ricardo

i got a problem with my cutlass engane and light harrnes my car is a 1987 i have got one from a 1984 cutlass supreme it did not fit my car has a v8 350 chevy motor can i use one off a monte carlo ss will it fit i cant find one off a 1987 cutlass

Jim's rare 80

Hi. Any G-body harness will work, as long as it also had a Chev V8 Motor. If you pull one yourself, label every plug when you remove it. It will save more time than it takes. Best of luck.

joe_padavano

If you're only changing out the under-hood harness, I'll caution that the wire assignments in the firewall connector may not be the same between years. While I don't have firsthand knowledge of the G-body harnesses, I DO know that the 69 and 70 Cutlass engine and light harnesses under the hood are different. I used a 70 harness on one of my 69s and the specific wire locations in the connector are different. You need a good wiring diagram, or at least a thorough side-by-side comparison of the two harnesses at the firewall connector.

Of course, the "right" answer is to stick with an Olds motor...