The firing order for a 1968 Oldsmobile Cutlass V8 depends on the specific engine. Oldsmobile used several different V8 engines in the Cutlass that year. You need to know the engine's displacement (e.g., 330, 350, 400, 455 cubic inches) to determine the correct firing order.
Once you know the engine size, you can find the firing order in a repair manual specific to your vehicle or online resources dedicated to Oldsmobile parts and specifications.
