Looking to swap the venerable LS engine into your hot rod, muscle car, or classic truck? Take a look at our detailed identification guide for Gen III/IV LS engines before you hit the salvage yard or swap meet!

Gen III/IV LS Engine ID Guide

GM’s 10-bolt rear axle has been around since the 1960s, here’s how to determine if your junkyard find is worth taking home

GM 10-Bolt Identification and Upgrades | 7.625, 7.5, 8.2, 8.5, 8.6

Inside GM’s Gen V LT engine family: history, tech, and performance of each LT engine option available.

GM Gen V Engine Guide | LT & EcoTec3 Engine Specs Guide

Learn how to identfy motors for your LS Swap. In this guide we cover generation 4 small block engines and some of the cheaper options for more power.

Gen 4 LS Engines - Junkyard LS Swap Identification Guide: Part 2

Learn how to swap out an LS engine with a modern fuel injected engine into a hot rod for added horsepower, fuel economy, or throttle response. View a list of parts and helpful tips to complete the installation.

LS Swap Guide: GM 3 Speed / 4 Speed Parts List

Need a little help Identifying GM Body Styles 1964-1972? Click Here!

GM Body Styles

Choosing new wheels for a GMC Chevrolet truck. This project uses Speedway Motors GM Rally Wheels and new tires to enhance the appearance of the truck.

GM Rally Wheels

Chevy LS engines get Engine Code as Top Category

Engine Family Facets

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Accessory Drive Kits Gm X Body Gm Chevy Gen 4 V8 Ls 7 0 Ls7

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GM X-Body GM LS7 Idler Pulleys and Components

GM X-Body GM LS7 Idler Pulleys and Components | Speedway Motors

Shop GM X-Body GM LS7 Idler Pulleys and Components and get Free Shipping on orders over $175 at Speedway Motors.

GM X-Body GM LS7 Idler Pulleys and Components

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Dorman 419-610 Smooth LS Idler Pulley, 76mm

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