Engine & Exhaust / Tech / Tech Articles

5.7L LS Engine Guide: Block Specs, Swap Resources & Build Info

While most folks remember the 5.7L LS1 being introduced in the C5 Corvette, don’t forget that you could also get it in a Pontiac wrapper. (Image/OnAllCylinders)

Throughout its long production run, the venerable GM LS engine came from the factory in a wide range of displacements, from a modest 4.8L to a whopping 7.0L. So if you’re thinking about an LS engine swap, LS engine build, or LS engine upgrade, the first place you’ll likely start looking is at the LS motor’s displacement.

This handy LS resource page is a good one to bookmark if you’re considering an LS crate engine for a swap, or looking for a 5.7L LS short block to use a basis for a high horsepower build.

Learn more about each LS engine displacement:
* 4.8L LS Engine Guide: Block Specs, Swap Resources & Build Info
* 5.3L LS Engine Guide: Block Specs, Swap Resources & Build Info
* 5.7L LS Engine Guide: Block Specs, Swap Resources & Build Info
* 6.0L LS Engine Guide: Block Specs, Swap Resources & Build Info
6.2L LS Engine Guide: Block Specs, Swap Resources & Build Info
* 7.0L LS Engine Guide: Block Specs, Swap Resources & Build Info

The 5.7L LS1 & LS6

Every superhero needs a good origin story (yes, even Wolverine), and the 5.7L LS1 is the LS family’s. Introduced in the 1997 Corvette C5, the LS1 and later LS6 wound up in GM’s performance oriented cars: the Corvette, Camaro, Firebird/Trans Am, GTO, and CTS-V. The LS1 began the LS engine legacy and ushered in a new era in the GM V8 development.

You may also want to check out our Definitive Guide to LS Engine Specs and LS Engine Upgrades.

5.7L LS Engine Specs

As mentioned earlier, there are two 5.7L LS engines to choose from. Check out the table below, and click the hyperlinks on the particular LS engine name (LS1 or LS6) to learn more.

5.7L LS Engine Spec Guide

YearsLiterCodeVehicleCam BoltsReluctorVVTAFMFlex FuelVIN
(8th Digit)
BlockHead
1997-045.7LS1F-Body, C5, GTO324xNoNoNoGAlum.Cathedral
2001-055.7LS6C5 Z06, CTS-V324xNoNoNoSAlum.Cathedral
Rand Swanson stuffed a 5.7L LS6 engine into a (ERMAGERD!) 1972 Lotus Europa. You can read more about Swanson’s engineering masterpiece here. (Image/OnAllCylinders)

Looking for an 5.7L LS Engine?

Here are two LS Engine Spotter’s Guides that will help:

LS Engine Swap Parts Guide

Our friends over at Summit Racing developed a helpful resource that’ll give you an idea of some of the parts you’ll need to complete your LS engine swap—including specific LS swap requirements for exact vehicle models. You can check it out here:

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