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

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 about the wiring of GM HEI Ignition Distributors with our diagrams and guide.  Ensure you are getting the best performance out of your ignition system.

GM HEI Ignition Distributor Wiring Diagrams and 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

In preparation to transplant a 430hp 383 stroker into Project Chevelle, Zach R. made up a set of plug wires for the car. To keep it nice and tidy they needed to be routed just right, be the perfect length and not distract from the engine!

Perfect Fit Spark Plug Wires

Learn about GM alternator identification in our guide. We cover GM 3 wire alternators, 1 wire alternators, and externally regulated so you know what to choose.

GM Alternator Identification

Watch our Steering Column Wiring Guide video for useful tips on wiring your new steering column for your vehicle. Ididit takes you through the wiring process.

Steering Column Wiring Guide

Check out this headlight wiring and taillight wiring diagram.

Headlight & Taillight Wiring Diagram

Wiring a car may seem like a daunting process, but Jess explains the steps to successfully wire the ignition switch, headlight switch, and the dash gauges.

How-to Wire a Gauge Panel

Engine Family Facets

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Engine Wiring Harnesses 4Th Gen Gm F Body

Chassis Wiring Harnesses 4Th Gen Gm F Body

Transmission Wiring Harnesses 4Th Gen Gm F Body

Popular Parts

4th Gen GM F-Body Primary Wires

4th Gen GM F-Body Primary Wires | Speedway Motors

Shop 4th Gen GM F-Body Primary Wires and get Free Shipping on orders over $175 at Speedway Motors.

4th Gen GM F-Body Primary Wires

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Longacre® 52-44957 16 gauge HD electrical wire, Black

Longacre® 52-44956 16 gauge HD electrical wire, Red

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