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

Learn how to re-build a junkyard Small Block Chevy. A step-by-step guide on how to select a SBC, machine the valve guide bosses down, and what parts to use to upgrade to your personal liking.

Rebuilding Junkyard SBC Vortec Cylinder Heads

Need help selecting the best cylinder head gaskets for your engine? Click here to learn the differences between copper, steel shim and MLS head gaskets. Plus install tips!

Cylinder Head Gasket Replacement | Buyer's Guide

The 4.8 LS engine is a salvage yard bargain vs the typical 5.3 or 6.0 LS and can still make great power for your LS swap needs.

Vortec 4.8 LS Build: Horsepower Recipes, Specs, & Upgrades

This resource contains a transmission pan shape ID chart and other tips to help with identifying GM transmissions.

How to Identify GM Transmissions | 700R4, TH350, 4L60, TH400, 4L80e, Powerglide, & More

Heath P. tells his story on how the passion for 'hot rodding' was instilled in him by his grandfather. From driving tractors on their family farm to becoming a Ford family, you are in for a good read.

For the Love of the Flathead V8

Learn about the specs of the V8 Ford Flathead Engine. Check out these Flathead firing order diagrams and torque specifications chart created by the experts.

Ford Flathead V8 Firing Order and Specs

Engine Cylinder Numbers

Here's our attempt to do the impossible: pick a favorite GM truck design!

Pick a Side: What Was the Best Generation of GM Trucks?

In this budget build, a GM rear end is upgraded in order to hold 400+ HP. See how spherical bushings are replaced in a used 8.5” GM 10 bolt rear end.

Replacing GM Rear End Spherical Bushings

Engine Family Facets

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GMT Trucks Pontiac 400 Cylinder Heads

GMT Trucks Pontiac 400 Cylinder Heads | Speedway Motors

Shop GMT Trucks Pontiac 400 Cylinder Heads and get Free Shipping on orders over $175 at Speedway Motors.

Edelbrock 61569 Performer Cylinder Head, D-Port, Bare, Pontiac 

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Edelbrock 61569 Performer Cylinder Head, D-Port, Bare, Pontiac