Firing orders and cylinder locations in 3D

Pick your engine to see its firing order on a 3D engine you can turn, with every cylinder numbered, bank 1 and bank 2 marked and the front of the engine shown. Every firing order and cylinder map here matches at least two sources, starting with the factory service information.

• Chevy 350 / small-block V8Firing order 1-8-4-3-6-5-7-2
• GM LS (5.3, 6.0, LS1, LS3)Firing order 1-8-7-2-6-5-4-3
• Ford 302 / 5.0 (standard and HO)Firing order 1-5-4-2-6-3-7-8 / 1-3-7-2-6-5-4-8
• Ford 3.5 EcoBoost (F-150 vs Explorer)Firing order 1-4-2-5-3-6
• Chrysler 5.7 and 6.4 HemiFiring order 1-8-4-3-6-5-7-2
• Ford 4.6 / 5.4 modular V8Firing order 1-3-7-2-6-5-4-8
• Chevy 4.3 V6 (Vortec 4300)Firing order 1-6-5-4-3-2
• Honda J35 V6 (Accord, Pilot, Odyssey)Firing order 1-4-2-5-3-6
• Toyota 3.5 V6 2GR-FE (Camry, Highlander, Sienna)Firing order 1-2-3-4-5-6
• Misfire code finderP0301 to P0308: which cylinder, on which side

Firing order is not cylinder numbering

The firing order is the sequence in which the cylinders fire. The cylinder numbers say where each cylinder sits, and makers number them differently: GM and Chrysler V8s alternate sides with the odd numbers on the driver side, Ford V8s number the passenger-side bank 1-4 first, and sideways V6s in front-drive cars put cylinder 1 on the rear bank. A misfire code such as P0304 uses the cylinder number.

Bank 1 and bank 2

Bank 1 is the bank that contains cylinder 1, on every make. Codes for oxygen sensors, camshaft timing and catalysts that name bank 1 or bank 2 follow the same rule.

How to read the 3D engines

• The coils carry the cylinder numbers; the orange coil is the one firing.
• The red-brown tag marks the front of the engine, the belt end.
• The outline under the engine is the engine bay: front of the vehicle, firewall, driver side and passenger side for left-hand-drive vehicles.
• Enter a misfire code in the box under the engine to light that cylinder.

Questions

What is a firing order?

The sequence in which the cylinders of an engine fire, given by cylinder number. A Chevy 350, for example, fires 1-8-4-3-6-5-7-2.

Why do I need the firing order?

To connect plug wires to a distributor in the right sequence, and to make sense of misfire patterns. On coil-per-cylinder engines the engine computer sets the sequence, so the cylinder numbering matters more for diagnosis.

Which side is the driver side on these diagrams?

The left side of the vehicle, as in the US and other left-hand-drive markets.

Last reviewed 15 November 2026 · How the data is sourced and checked