Common V8 Firing Orders, Distributor Locations and Rotation Directions

Common Firing Orders
 

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.

ENGINEDistributor
Rotation
Firing OrderCylinder Banks
Front-to-Back
Left = Driver’s Side
Right = Passenger Side
AMC V8
(all)
Clockwise18436572Left: 1-3-5-7, Right: 2-4-6-8
Buick V8
Most V8s except HEI
Clockwise18436572Left: 1-3-5-7, Right: 2-4-6-8
Cadillac
up to ’67
Clockwise18726543Left: 1-3-5-7, Right: 2-4-6-8
Cadillac
’68-74
Clockwise15634278Left: 2-4-6-8, Right: 1-3-5-7
Chevrolet V8
(all)
Clockwise18436572Left: 1-3-5-7, Right: 2-4-6-8
Chevrolet V8
Gen V, VI
No Distributor18436572Left: 1-3-5-7, Right: 2-4-6-8
GM LS V8No Distributor18726543Left: 1-3-5-7, Right: 2-4-6-8
Chrysler V8
(small blocks)
Clockwise18436572Left: 1-3-5-7, Right: 2-4-6-8
Chrysler V8
(big blocks & Hemi)
Counter-
Clockwise
18436572Left: 1-3-5-7, Right: 2-4-6-8
Chrysler
5.7L Hemi V8
No Distributor18436572Left: 1-3-5-7, Right: 2-4-6-8
Desoto V8Counter-
Clockwise
18436572Left: 1-3-5-7, Right: 2-4-6-8
Early Ford V8
272,292,312
Counter-
Clockwise
15486372Left: 5-6-7-8, Right: 1-2-3-4
Most Ford V8Counter-
Clockwise
15426378Left: 5-6-7-8, Right: 1-2-3-4
Ford 5.0L
HO, 351W, 351M, 351C, 400
Counter-
Clockwise
13726548Left: 1-2-3-4, Right: 5-6-7-8
Most Ford Modular V8 4.6/5.4LNo Distributor13726548Left: 1-2-3-4, Right 5-6-7-8
Ford 5.0L
Coyote
No Distributor15486372Left: 1-2-3-4, Right: 5-6-7-8
Ford Flathead V8
1932-53
Clockwise15486372Left: 5-6-7-8, Right: 1-2-3-4
Hudson V8
1955-57
Clockwise184436572Left: 1-2-3-4, Right: 5-6-7-8
Lincoln V8
1949-51
Clockwise15486372Left: 5-6-7-8, Right: 1-2-3-4
Lincoln V8
1952-76
Counter-
Clockwise
15486372Left: 5-6-7-8, Right: 1-2-3-4
Oldsmobile V8
1949-64
Counter-
Clockwise
18736542Left: 1-3-5-7, Right: 2-4-6-8
Oldsmobile V8
1961-64
F85
Counter-
Clockwise
 18436572Left: 1-3-5-7, Right: 2-4-6-8
Oldsmobile V8
1965-76
Counter-
Clockwise
18436572Left: 1-3-5-7, Right: 2-4-6-8
Pontiac V8*
1955-81
Counter-
Clockwise
18436572Left: 1-3-5-7, Right: 2-4-6-8
Pontiac 307
(Chevrolet engine)
Clockwise18436572Left: 1-3-5-7, Right: 2-4-6-8
Packard
V8 (all)
Clockwise18436572Left: 1-3-5-7, Right: 2-4-6-8
Studebaker
V8 (all)
Counter-
Clockwise
18436572Left: 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…

Common Firing Orders