SBC Distributor Firing Order [With Diagram]

You can check out the firing order for SBC Distributor written below. We have included the firing orders of other similar engines as well including Chevy 350.

Note that this sequence has been tested for the SBC Distributor by our team. This firing order will help you set the correct sequence of ignition so you face no problems in the future.

SBC Distributor Firing Order

  • Firing Order for 400 Pontiac is 1, 8, 4, 3, 6, 5, 7, 2.

SBC Distributor Firing Order Diagram

The following is a diagram of the SBC (Small Block Chevy) distributor firing order: The distributor cap is numbered clockwise, with position one being at the fifth hour. A normal SBC V8 engine fires in the following order: 1-8-4-3-6-5-7-2. This firing order dictates the routing of the spark plug wires, starting with the first spark plug wire connecting to the distributor cap at position one and moving clockwise around the cap from there.

To guarantee proper engine running, it is very very important to check that the spark plug wires are correctly connected to the relevant spark plugs and distributor cap contacts.

Firing Order Applies To

The 1, 8, 4, 3, 6, 5, 7, 2 firing order applies to SBC Distributor, such as:

  • Chevrolet 350 (5.7L) V8
  • Chevrolet 305 (5.0L) V8
  • Chevrolet 400 (6.6L) V8
  • Chevrolet 327 (5.4L) V8
  • Chevrolet 283 (4.6L) V8

Torque Specifications

Vehicle NameHorsepower/RPM Torque/RPM
Chevrolet 350 (5.7L) V8365 hp @ 5,200 rpm405 lb-ft @ 3,700 rpm
2021 GMC Sierra401@5,200 rpm464@4,000 rpm
2011 Chevrolet Impala211@5,800 rpm216@4,000 rpm

What is the Distributor Rotation On a Small Block Chevy?

When viewed from the top, the small block Chevy (SBC) engine’s distributor rotates anticlockwise. This indicates that the rotor within the distributor cap rotates clockwise when the engine runs. Through the distributor shaft, the camshaft drives the distributor rotor. Proper ignition timing and coordinated spark plug firing sequence depend on the distributor being rotated clockwise.

It makes sure that during the engine’s four-stroke cycle, the right cylinder receives the spark at the right time. All SBC engines, including the well-known 350 (5.7L) V8, use the same distributor rotation orientation.

What Should Initial Timing Be On a Small Block Chevy?

The Small Block Chevy (SBC) engine’s beginning timing might differ depending on the engine model, modifications, and gasoline type, among other things. A stock SBC engine’s starting timing is often set between 8 and 12 degrees Before Top Dead Centre (BTDC), as a general rule.

To achieve optimum performance and avoid engine damage, it is essential to reference the engine manufacturer’s paperwork or service manual for the recommended initial timing specification for your specific SBC engine model.

What is The Most Powerful Production Small Block Chevy?

The LS9 is among the most potent production small block Chevy engines. The Chevrolet Corvette ZR1 uses a 6.2-liter V8 engine with a supercharger called the LS9. It generates a strong 604 lb-ft of torque and 638 horsepower.

Check out 400 Pontiac Firing Order

Engines with Similar Firing Orders

  • Pontiac Firebird
  • GMC Sierra
  • Chevrolet Impala
  • Chevrolet Camaro
  • Chevrolet Corvette

Chev Small Block Firing Order

Jake Mayock