If you're ready to swap an LS engine into you '73-'87 Squarebody Chevy or GMC truck, here's a guide to get you started and a parts list to help you get everything you need for your swap.

Squarebody LS Swap Guide | 73-87 C10 Parts List

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

Speedway Economy 12 Circuit Wiring Harness

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

Concerned about a transmission swap? Our engine transmission compatibility checker will help confirm what you need to make it happen.

Transmission Interchange List Chevy, Ford, Mopar V8 Compatibility

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

Comparing GM’s LS V8 engine to the high-tech LT V8 engine. Which is better for your performance needs and budget?

LS vs LT Engine: Which Swap is Better? HP, Specs & Fitment Differences

LS swaps are nothing new, but they're still a little mysterious to some of us. Here is an overview of what you will need and what you need to know to swap some modern performance into your muscle car, truck, or hot rod!

LS Swap How-To Guide

Learn about performing an LS Swap in a 1972 Chevelle in this tech article. We'll discuss lessons learned from our Chevelle engine swap using a 500-horse 6.0.

LS Swap Chevelle Guide

Small block Chevy V8 or the modern LS V8? Which one comes out on top as the best engine to swap into your ride?

SBC vs LS Showdown | Dimensions for Swaps, Weight, HP, Specs

How to plan and execute a LS swap into any 1973-1987 Chevy/GMC K10 pickup truck.

Squarebody LS Swap Guide | 73-87 K10 Parts List

Chevy LS engines get Engine Code as Top Category

Engine Family Facets

707063f6-5cf0-44d1-8e1f-49059e48addf

3fe4cfeb-d42e-4b60-a312-2940d324f962

Try Shopping by the Make of your Vehicle:

LS Chevy T56 Wiring Harness and Components

LS Chevy T56 Wiring Harness and Components | Speedway Motors

Shop LS Chevy T56 Wiring Harness and Components and get Free Shipping on orders over $175 at Speedway Motors.

LS Chevy T56 Wiring Harness and Components

Part

Brand

Application

Department

Availability

Engine Code

Engine Version

Displacement

Make

Platform

Price

Customer Rating

Products

Speedway Motors LS1/T56 Drive By Cable Harness

PSI Conversion 07-14 LS/Vortec Standalone Engine Harness

Speedway Motors LS1/T56 Drive By Wire Harness

Standalone Wiring Harness, DBW LS Truck, T56 Transmission

Try Shopping by the Make of your Vehicle: