If I remember correctly 1-8-4-3-6-5-7-2
The firing order for a 1970-76 455 should be 18436572 Enjoy!
18436572
google firing order for a 455 olds and it will bring it up
1970-74 Oldsmobile-built 350, 455 V8 Engine firing order: 1-8-4-3-6-5-7-2 Distributor rotation: Counter-clockwise
Fig. 4: 1970-74 Oldsmobile-built 350, 455 V8. Engine firing order: 1-8-4-3-6-5-7-2. Distributor rotation: Counter-clockwise
The answer to the question is 1-8-4-3-6-5-7-2 for a 455 olds engine. Firing order for an olds 455 engine is 1-8-4-3-6-5-7-2
1970-76 455 should be 18436572
Check out www.v8buick.com. There you will find all the info you need for your engine.
Answer Anonymously What is the diagram and firing order for a 76 Pontiac trans am 455 engine?
18436572 COUNTER CLOCKWISE
A 1974 Oldsmobile 455 V8 has horsepower of 275 to 400. The Oldsmobile 455 was last produced in the year of 1975.
265, 301, 307, 326, 350, 389, 400, 421, 428, 455 all have the same firing order 1,8,4,3,6,5,7,2 the 2.8 firing order is 1,2,3,4,5,6