Day Three is in the books of the Speedway Motors Week to Wicked 1952 Chevy build. Progress today included putting the engine and tranny where they belong and continued work on the wiring.

Speedway Motors Week to Wicked Day Three: The LS3/4L70E Drivetrain Install Wrap-Up

Day Four of the Speedway Motors Week to Wicked 1952 Chevy build starts off with a whole lot of wiring.

Speedway Motors Week to Wicked Day Four: High Voltage; Stringing Up the Chevy’s Wiring Harness

Building GM’s LQ4 6.0L Gen 3 LS engine for various power levels is easy with the right performance parts recipe.

LQ4 Engine Build Upgrades | Recipes for 500HP - 1,000HP

A guide on how to install a universal wiring harness in a car. Read tips on properly wiring taillights, headlights, gauges, ignition switch, steering column and more.

Universal Wiring Harness Instructions - Installation

In this Tech Tip, John answers a customer question about the Speedway 12 Circuit Wiring Harness.

Speedway Economy 12 Circuit Wiring Harness

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

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

Follow along as Jeff installs an early 700R4 transmission for the big block in his 1967 Chevelle. See how this unit is upgraded and converted to a later 30 spline style.

Upgrading a 700R4 Transmission - 1967 Chevelle

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

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

Engine Family Facets

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4L70E, Engine Wiring Harnesses

4L70E, Engine Wiring Harnesses | Speedway Motors

Shop 4L70E, Engine Wiring Harnesses and get Free Shipping on orders over $175 at Speedway Motors, the Racing and Rodding Specialists. 4L70E, Engine Wiring Harnesses in-stock with same-day shipping.

4L70E, Engine Wiring Harnesses

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PSI Conversion HAR-4L80-1 Adaptor, 13 Pin 4L60-75E to 4L80E

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