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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

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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.

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Speedway Motors, a manufacturer, retailer and distributor of high-quality automotive parts and racing products, announced today new products now available on their website.

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Derek kicks off his 55 Chevy rebuild with a fresh small block.

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Chevy LS engines get Engine Code as Top Category

Engine Family Facets

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GMC C15 Gen 4 LS Oil, Fluid, and Additive

GMC C15 Gen 4 LS Oil, Fluid, and Additive | Speedway Motors

Shop GMC C15 Gen 4 LS Oil, Fluid, and Additive and get Free Shipping on orders over $175 at Speedway Motors.

GMC C15 Gen 4 LS Oil, Fluid, and Additive

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