Here’s the 7.0L COPO LS7 that SAM Tech was able to push well past 800 hp—without the help of forced induction! Get the backstory on this beast here. (Image/Stephen Kim)

For well over two decades, the LS was General Motors’ primary V8 engine family. That means GM LS motors wound up in everything from pickup trucks to late model muscle cars, in displacements ranging from 4.8L to an impressive 7.0L. So if you’re thinking about an LS engine swap, LS engine build, or LS engine upgrade, the first number you’ll likely reference is 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 7.0L LS short block to start a project.

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 7.0L LS7 Engine

Unlike our other LS displacement guides, there’s only one factory 7.0L LS engine to talk about here—the fire-breathing LS7.

Developed out of Chevy’s racing programs, the LS7 was a high performance LS motor for the top tier Camaro and Corvette track trims. And it’s no accident that 7.0L computes out to roughly 427 cubic inches. The old school Mark IV 427 Chevy Big Block is the stuff of horsepower legend, so when Chevy engineers began designing the LS7, they undoubtedly wanted to stir up memories of an era when stinger-hood Corvettes prowled the streets.

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

7.0L LS Engine Specs

Check out some basic specs on the LS7 below, then click on the name “LS7” hyperlinked within the chart to see other vital engine data like general performance, bore & stroke, cylinder head design, cam specs, and more.

7.0L LS Engine Spec Guide

YearsLiterCodeVehicleCam BoltsReluctorVVTAFMFlex FuelVIN (8th Digit)BlockHead
2006-157.0LS7C6 Z06, Camaro Z/28358X/4XNoNoNoEAlum.Square
Chevy wasn’t shy about using 427ci instead of 7.0L when talking about the LS7 either. (Image/Chevrolet)

The 7.0L LSX

A close cousin of the 7.0L LS7 is the 7.0L LSX, so it’s easy to confuse the two. The 7.0L “LSX” was a race engine produced by Chevrolet and never offered in a production vehicle. Unlike the aluminum LS7, the 7.0L LSX featured an iron block, which made it desirable for big-power builds.

Yet the 7.0L LSX motor is getting increasingly more rare, as a result of being discontinued by Chevrolet Performance.

Looking for a 7.0L LS Engine?

Given that it only appeared in limited production top performance trims like the Camaro Z/28, it’s unlikely that you’ll come across an LS7 in a junkyard. Still, an LS-swapping gearhead can dream…

LS Engine Swap Parts Guide

The tech pros over at Summit Racing created a handy page 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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