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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
1-8-4-3-6-5-7-2
The firing order for a 1970-76 455 should be 18436572 Enjoy!
1-8-4-3-6-5-7-2
Answer Anonymously What is the diagram and firing order for a 76 Pontiac trans am 455 engine?
The order in the distributor will be 18436572 in a counter clockwise rotation. see link
18436572
18436572 COUNTER CLOCKWISE
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
Fig. 4: 1970-74 Oldsmobile-built 350, 455 V8. Engine firing order: 1-8-4-3-6-5-7-2. Distributor rotation: Counter-clockwise
1970-76 455 should be 18436572