1, 8, 4, 3, 6, 5, 7, 2.
18436572
18436572 clock wise
I believe it is like all chevy's 18436572
1-8-4-3-6-5-7-2
1 8 4 3 6 5 7 2
400 Chevy engine back firiung exhaust carburtor
The firing order for the Pontiac 400 engine is that the small block powers the big block.
1 8 4 3 6 5 7 2 is the order on the car im working on same as a Chevy but counter clockwise
the firing order for a Pontiac 400 v8 from 1967-77 is 1-8-4-3-6-5-7-2
1,3,7,2,6,5,4,8 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
All V8 engines have the same firing order. 1,3,5,7 is the left bank, 2,4,6,8 is the right bank and the distributor rotates clockwise. 1,8,4,3,6,5,7,2