Chevy 350 firing order and cylinder numbers (small-block V8)
The Chevrolet small-block V8 (350, 305, 327, 400) fires 1-8-4-3-6-5-7-2. Cylinder 1 is the front cylinder on the driver side (bank 1, left bank).
Drag to turn the engine, scroll or pinch to zoom. Orange = the cylinder firing now; the numbers on the coils are cylinder numbers. Driver and passenger sides are for left-hand-drive vehicles.
Firing order diagram
Where each cylinder is
| Cylinder | Misfire code | Location | Place in firing order |
|---|---|---|---|
| 1 | P0301 | The front cylinder on the driver side (bank 1, left bank) | 1st |
| 2 | P0302 | The front cylinder on the passenger side (bank 2, right bank) | 8th |
| 3 | P0303 | The second cylinder from the front on the driver side (bank 1, left bank) | 4th |
| 4 | P0304 | The second cylinder from the front on the passenger side (bank 2, right bank) | 3rd |
| 5 | P0305 | The third cylinder from the front on the driver side (bank 1, left bank) | 6th |
| 6 | P0306 | The third cylinder from the front on the passenger side (bank 2, right bank) | 5th |
| 7 | P0307 | The rear cylinder on the driver side (bank 1, left bank) | 7th |
| 8 | P0308 | The rear cylinder on the passenger side (bank 2, right bank) | 2nd |
Bank 1 is always the bank that contains cylinder 1, so for this engine bank 1 is the left bank with cylinders 1-3-5-7; bank 2 is the right bank with cylinders 2-4-6-8. Oxygen-sensor, camshaft and catalyst codes that name bank 1 or bank 2 use the same split.
Coils, plugs and wires
- Gen I engines use a distributor. The rotor turns clockwise seen from above; the No. 1 terminal is wherever the rotor points with cylinder 1 at top dead centre on compression, then the wires follow 8-4-3-6-5-7-2 clockwise.
How to find a cylinder on this engine
- Find the front of the engine: the end with the drive belt and pulleys.
- Find bank 1, the left bank that holds cylinder 1. On this engine it is the driver side.
- Count from the belt end. Cylinders 1-3-5-7 run along bank 1 and 2-4-6-8 along bank 2, each starting at the belt end.
- Match the code: P0301 is cylinder 1, P0302 cylinder 2, and so on. P0300 means a random or multiple misfire and does not name a cylinder.
Which engines this covers
Chevrolet small-block V8s with the traditional firing order: the Gen I 283, 305, 327, 350 and 400 and the 1992-97 Gen II LT1. Not the LS or LT (2014-on) families.
- Chevrolet C/K pickups, Tahoe and Suburban with the 5.7 (350)
- Camaro and Caprice 5.7 (1995 LT1 verified)
- Classic cars and swaps with a Gen I small-block
Questions
What is the Chevy 350 / small-block V8 firing order?
1-8-4-3-6-5-7-2.
Which side is cylinder 1 on?
Cylinder 1 is the front cylinder on the driver side (bank 1, left bank).
Where is cylinder 4 (code P0304)?
Cylinder 4 is the second cylinder from the front on the passenger side (bank 2, right bank).
Which bank is bank 1?
The bank with cylinder 1: the left bank, cylinders 1-3-5-7.
Is the LS firing order the same as the 350?
No. The Gen III/IV LS family fires 1-8-7-2-6-5-4-3. The cylinder numbering is the same (odd cylinders on the driver side), so only the order changes. See the LS firing order page.
Sources
The firing order, the cylinder numbering and the position of each bank in the vehicle were each checked against at least two of these sources, and they agree.
- Chevrolet Performance, 350/290 HP Long Block installation guide, P/N 19172591 (specifications). “Firing Order: 1-8-4-3-6-5-7-2” Factory / manufacturer
- GM service manual, 1995 Chevrolet Camaro 5.7L (LT1), Ignition Firing Order diagram (via Operation CHARM). “Diagram: FIRING ORDER 1 8 4 3 6 5 7 2; front of car at the bottom; 1-3-5-7 on the driver-side bank, 2-4-6-8 on the passenger side.” Factory / manufacturer
- GM service manual, 1995 Chevrolet Tahoe 5.7L TBI, Ignition Firing Order diagram (via Operation CHARM). “Diagram: FIRING ORDER 1 8 4 3 6 5 7 2, front of car at the bottom, distributor rotation arrow clockwise.” Factory / manufacturer
- Engine-build.com, Chevy Small-Block V8 firing order. “Firing order: 1-8-4-3-6-5-7-2. Odd cylinders 1-3-5-7 on the left bank, even 2-4-6-8 on the right bank, numbered front to rear; #1 is the left-front cylinder.” Independent reference
- TorqueSheet, Chevy 350 firing order and cylinder numbering. “Cylinders 1-3-5-7 are on the driver side and 2-4-6-8 are on the passenger side, numbered front to rear. A conventional HEI distributor rotor turns clockwise when viewed from above.” Independent reference
Last reviewed 15 November 2026 · How the data is sourced and checked