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a haynes or other vehicle/ motor repair manual should have it. The book I have (MOTOR Truck Repair Manual 28th Edition) which is older than the 305 itself showall Chevy v8's as having the same fireing order.

Cylinder #'s from front to back are

Passenger side: 2-4-6-8

Drivers side:1-3-5-7

Firing order: 1-8-4-3-6-5-7-2

This is for the 350, 307, 327, 348, 409, 396, 427, 637 454

When looking at the engine from the front the disributer cap starting on the near side left and going clockwise goes 1-8-4-3-6-5-7-2

The 637 is the odd one it starts from the same position going clockwise goes 4-3-6-5-7-2-1-8

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13y ago

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