Info on V8 Engine Firing Order

V8 Engines - Firing Order

Ford Engines
4, 6, 8, 10, 12 Cylinder Ford Engines

Ford V8 Engines
8 Cylinder Engines

Ford 351 Cleveland V8 Engines
The Ford 351 cubic inch V8 Engines

Doing something as simple as a cap. rotor and spark plug and wire change can quickly become complicated if you loose track of the wiring / firing order of your wires and you don't have a shop manual handy. Thanks to a few jobs where a wire or two were out of order in the reinstallation of what should have been an easy tune up using a new cap, new rotor kit and a change of the spark plugs and wires, this information was eventually written down and posted in the garage above the work bench. So here is a reference sheet of most domestic V8 engines:

Oldsmobile V8 Engines 1967 and later:

Oldsmobile V8 Engines 1967 and later:
Rotation: Counter-clockwise
Firing Order: 1-8-4-3-6-5-7-2

AMC for most V8 engines:

AMC for most V8 engines:
Rotation: Clockwise
Firing Order: 1-8-4-3-6-5-7-2
AMC V8 hp/Torque, Compression & Bore/Stroke

Buick Engines except HEI:

Buick Engines for most except HEI:
Rotation: Clockwise
Firing Order: 1-8-4-3-6-5-7-2

Chevrolet / Chevy Engines:

Chevrolet / Chevy Engines:
Rotation: Clockwise
Firing Order: 1-8-4-3-6-5-7-2

Chrysler Big Block & Hemi Engine

Chrysler Big Block & Hemi Engine Firing Order:
Rotation: Counter-clockwise
Firing Order: 1-8-4-3-6-5-7-2

Chrysler Small Block

Chrysler Small Block:
Rotation: Clockwise
Firing Order: 1-8-4-3-6-5-7-2

Ford Engines:
5.0L HO, 351W, 351M, 351C, 400

Ford Engines: 5.0L HO, 351W, 351M, 351C, 400:
Rotation: Counter-clockwise
Firing Order: 1-3-7-2-6-5-4-8

Ford Most V8 Engines

Ford Most V8 Engines:
Rotation: Counter-clockwise
Firing Order: 1-5-4-2-6-3-7-8

Pontiac Engines

Pontiac Engines for most 1955 through 1981:
Rotation: Counter-clockwise
Firing Order: 1-8-4-3-6-5-7-2
Note: the 307 Pontiac V8 engine rotates clockwise

Engine Overheating Basics

Fan Clutch Diagnosis
How to tell if the Fan Clutch
in your Cooling System is
failing or has failed.

Also See:

Ford Engines
4, 6, 8 Cylinder, 10 Cylinder, 12 Cylinder Ford Engines

Ford V8 Engines
8 Cylinder Engines manufactured by Ford

Ford 351 Cleveland V8 Engines
351 cubic inch V8 Engines manufactured by Ford

AMC V8 Engines
From GEN-1 Nash/Hudson/Rambler V-8s (1956-1966)
through to the GEN-3 AMC Tall-deck (1970-1991)

AMC V8 hp/Torque, Compression & Bore/Stroke by year