LS1 Firing Order [With Diagram]

Ever since its introduction in 1997, GM has made several changes to the LS and it has been known to be one of the most popular v8 engines ever. LS engines are small block v8 engines that are still used in many cars today. GM introduced many upgraded versions of the LS engine, one of which is the LS1.

The original firing order of the LS was 1-8-4-3-6-5-7-2 but GM later changed the firing order to 1-8-7-2-6-5-4-3 which is still very popular in today’s time. This is also the Chevy LS1 firing order because the GM LS1 order was used in many of their vehicles as well.

LS1 firing order

The Best firing order for LS1 Engine is 1-8-4-3-6-5-7-2

The alternative firing order is 1-8-7-2-6-5-4-3

Explanation of LS1 firing order

To understand the firing order of the LS1, you will have to look at the LS1 diagram. The firing order diagram shows the firing order of the LS1 which is 1-8-7-2-6-5-4-3. Understanding the firing order isn’t an incredible task for someone who knows nothing about it.

What it simply means is the sequence in which each cylinder of the engine block will be ignited when the vehicle is running. Each cylinder of the vehicle is given a number when manufactured.

The number of the cylinder represents the sequence in which the cylinders will be ignited. For the above-given sequence, the first cylinder will be ignited first, and then the eighth cylinder, and so on.

Firing Order Applies to:

  • LS0B
  • LS20B4
  • LSZ2

Torque Specifications

7/16 in. Outer Main Cap Bolt70 ft.-lbs.
7/16 in. Inner Main Cap Bolt75 ft.-lbs.
3/8 in. Outer Main Cap Bolt35 ft.-lbs.
11/32 in. Connecting Rod Bolt38-44 ft.-lbs.
3/8 in. Connecting Rod Bolt40-45 ft,-lbs.

Firing Order For Similar Vehicles:

  • 2020 Honda Civic 1-3-4-2
  • 2020 Audi A5 1-3-4-2
  • 2020 Kia Stinger 1-3-4-2
  • 2020 Toyota Camry 1-3-4-2

What engine firing order is 1-8-4-3-6-5-7-2?

The most common firing order for v8 engines is 1-8-4-3-6-5-7-2. This firing order is most commonly used in older v8 engines which are mostly used in Chevy, Buick, AMC, and other vehicles. This firing order is one of the most used ones for v8 engines because it is known to be one of the best, if not, the best firing order. Although, not everyone might agree with such opinions as other firing orders might be better in some regards.

Is the LS firing order different?

There are many different LS firing orders but the standard one is 1-8-7-2-6-5-4-3. The standard firing order does a good job of alternating firing between the banks. There are a total of 8 different firing order combinations for the LS and each one of them will provide various results.

Check out 7.3 Powerstroke Firing Order

Is the LS based on a Ford motor?

No, the LS is a unique engine and is in no way a copy of a Ford motor nor is it associated with it in any way. General Motors has developed its engine without copying anything major from an engine of another manufacturer.

Which LS is the strongest?

The most powerful LS engine is the LS7 which is found in the Chevy Corvette and many other vehicles. The LS7 engine is better than the others because it was designed to be very powerful and reliable at the same time. The LS7 produces about 500 horsepower and 475 lb/ft of torque.

Jake Mayock