The firing order on all small block Chevy engines is, 18436572 and the cylinders are numbered as following, driver side 1357 and pass side 2468
The firing order for a 305 Chevrolet engine is: 1-8-4-3-6-5-7-2
any motor manual,chilton,s or haynes will have a firing order diagram . the firing order is 18436572
18436572
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18436572 It should be cast on the factory intake manifold.
V8 engine Engine firing order: 1-8-4-3-6-5-7-2 Distributor rotation: Clockwise
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The firing order for a Chevrolet 305 is: 1-8-4-3-6-5-7-2
18436572
18436572 you already knew
If you have a 305 or 350, it is 1,8,4,3,6,5,7,2.