What is the firing order for a 1976 Cadillac?

The firing order for a 1976 Cadillac depends on the engine. Cadillacs in 1976 used either a 500 cubic inch V8 or a 472 cubic inch V8 (though the 472 was phased out and less common by that year). They had different firing orders:

* 500 cubic inch V8: 1-8-4-3-6-5-7-2

* 472 cubic inch V8: 1-8-4-3-6-5-7-2 (Interestingly, despite being a different engine, it shared the same firing order as the 500)

You'll need to determine which engine is in your specific 1976 Cadillac to be completely certain. Check your vehicle's identification number (VIN) or the engine block itself for the engine size.