Distributor Cap Firing Order [With Diagram]

The distributor cap firing order is like a special code. That helps the engine in a car use the right spark plug to start and run. For cars like the Chevy 350 and Honda CRV, the distributor cap number 1 position is marked. That helps drivers use the correct spark plug first. Like the 4.3 V6 engine, cars’ firing order can be different.

A distributor cap diagram shows which spark plugs to use in each cylinder. It shows the order of the spark plugs and which wire goes to each one and the rotation is the direction. In which the rotor inside the cap turns to deliver the spark to the correct plug. The cylinder ensures the engine in a car uses the right spark plug in each cylinder to start up and run.

DC firing order

The firing order for the Distributor Cap engine is 1-3-4-2

Explanation of Distributor cap firing order

The distributor cap is like an instruction manual that tells the engine which sparks plug to use first, second, third, and fourth to start running. Having the right firing order is important. So the engine can run and make the car go without any problems.

The distributor cap is like a spinning wheel. As a result, each spark plug receives an electric current from the ignition coil. And the firing order determines which spark plug gets the spark first, second, third, and so on.

The firing order applies to

  • Chevy
  • Ford f150
  • 351 Windsor
  • 5.4L
  • 5.8L V8

Torque Specifications

Fastener TypeTorque Spec
Main Cap Bolts95-105 ft.-lbs.
Connecting Rod Bolts40-45 ft.-lbs. (45-50 ft.-lbs. for Boss 351C)
Cylinder Head Bolts (Follow factory torque sequence)105 ft.-lbs. (125 ft.-lbs. for Boss 351C)
Rocker Arms (Non-adjustable)18-22 ft.-lbs.
5/16 in. Intake Manifold Bolts21-25 ft.-lbs.
3/8 in. Intake Manifold Bolts28-33 ft.-lbs.
Oil Pump Bolt25 ft.-lbs.

Which is number 1 on the distributor cap?

The distributor cap has a special spot for each spark plug, and we call those spots numbers. Number 1 is usually the first spot in the front of the cap, like the first button on a shirt.

What is the firing order of a 4-cylinder distributor?

The firing order for most 4-cylinder distributors is 1-3-4-2.

Check out Ford 400 Firing Order

What does firing order 1-3-4-2 mean?

Firing order 1-3-4-2 is a special order. That tells the engine in a car that sparks plug to use first, second, third, and fourth to start running. When the car starts, the engine uses spark plug number one first. Then spark plug number three. Then spark plug number four. And finally, spark plug number two to keep the engine running.

Firing order for similar vehicles

  • Porsche 928 1-3-7-2-6-5-4-8
  • Ford Modular V-8 1-3-7-2-6-5-4-8
  • 5.0 H.O 1-3-7-2-6-5-4-8
  • L410 V8 1-3-7-2-6-5-4-8

What is the best firing order for spark plugs?

The correct spark plug firing order is when the spark plugs in a car’s engine are ignited. It is like a secret code that tells the engine when to make a vroom sound.


Jake Mayock
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