Technical Info

Common V8 Firing Orders, Distributor Locations and Rotation Directions

There’s little as frustrating as finishing up a build and not remembering the firing order so you can install the plug wires and fire it up.

Of course, most of us know the firing order for our own ride and others we’re familiar with, but that doesn’t help much when you’re a Ford guy and you’re helping a buddy finish up and fire-off his Cadillac.

This table shows Firing Order, Distributor Rotation Direction, and Cylinder Banks.

ENGINE Distributor
Rotation
Firing Order Cylinder Banks
Front-to-Back
Left = Driver’s Side
Right = Passenger Side
AMC V8
(all)
Clockwise 18436572 Left: 1-3-5-7, Right: 2-4-6-8
Buick V8
Most V8s except HEI
Clockwise 18436572 Left: 1-3-5-7, Right: 2-4-6-8
Cadillac
up to ’67
Clockwise 18726543 Left: 1-3-5-7, Right: 2-4-6-8
Cadillac
’68-74
Clockwise 15634278 Left: 2-4-6-8, Right: 1-3-5-7
Chevrolet V8
(all)
Clockwise 18436572 Left: 1-3-5-7, Right: 2-4-6-8
Chevrolet V8
Gen V, VI
No Distributor 18436572 Left: 1-3-5-7, Right: 2-4-6-8
GM LS V8 No Distributor 18726543 Left: 1-3-5-7, Right: 2-4-6-8
Chrysler V8
(small blocks)
Clockwise 18436572 Left: 1-3-5-7, Right: 2-4-6-8
Chrysler V8
(big blocks & Hemi)
Counter-
Clockwise
18436572 Left: 1-3-5-7, Right: 2-4-6-8
Chrysler
5.7L Hemi V8
No Distributor 18436572 Left: 1-3-5-7, Right: 2-4-6-8
Desoto V8 Counter-
Clockwise
18436572 Left: 1-3-5-7, Right: 2-4-6-8
Early Ford V8
272,292,312
Counter-
Clockwise
15486372 Left: 5-6-7-8, Right: 1-2-3-4
Most Ford V8 Counter-
Clockwise
15426378 Left: 5-6-7-8, Right: 1-2-3-4
Ford 5.0L
HO, 351W, 351M, 351C, 400
Counter-
Clockwise
13726548 Left: 1-2-3-4, Right: 5-6-7-8
Most Ford Modular V8 4.6/5.4L No Distributor 13726548 Left: 1-2-3-4, Right 5-6-7-8
Ford 5.0L
Coyote
No Distributor 15486372 Left: 1-2-3-4, Right: 5-6-7-8
Ford Flathead V8
1932-53
Clockwise 15486372 Left: 5-6-7-8, Right: 1-2-3-4
Hudson V8
1955-57
Clockwise 184436572 Left: 1-2-3-4, Right: 5-6-7-8
Lincoln V8
1949-51
Clockwise 15486372 Left: 5-6-7-8, Right: 1-2-3-4
Lincoln V8
1952-76
Counter-
Clockwise
15486372 Left: 5-6-7-8, Right: 1-2-3-4
Oldsmobile V8
1949-64
Counter-
Clockwise
18736542 Left: 1-3-5-7, Right: 2-4-6-8
Oldsmobile V8
1961-64
F85
Counter-
Clockwise
18436572 Left: 1-3-5-7, Right: 2-4-6-8
Oldsmobile V8
1965-76
Counter-
Clockwise
18436572 Left: 1-3-5-7, Right: 2-4-6-8
Pontiac V8*
1955-81
Counter-
Clockwise
18436572 Left: 1-3-5-7, Right: 2-4-6-8
Pontiac 307
(Chevrolet engine)
Clockwise 18436572 Left: 1-3-5-7, Right: 2-4-6-8
Packard
V8 (all)
Clockwise 18436572 Left: 1-3-5-7, Right: 2-4-6-8
Studebaker
V8 (all)
Counter-
Clockwise
18436572 Left: 1-3-5-7, Right: 2-4-6-8

Technical Note: All American V8s have offset cylinder banks to accommodate side-by-side rod pairing on the crank throws. In the absence of published information, the number one cylinder will almost always be the one that is farthest forward regardless of which bank it is on.

The exception to this rule is the Pontiac V8 where the forward most cylinder is on the passenger side. The number one cylinder is still on the front left side, but it is not the most forward cylinder on the block.

Common V8 Firing Order Chart from MSD

MSD Ignition created this helpful chart that displays many common V8 firing orders and distributor direction…

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