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

Decode, ID, and upgrade your GM 12-bolt rear end. Learn axle specs, gear ratios, and best performance parts upgrades.

GM 12-Bolt Rear End Identification & Upgrade Guide

Learn more about GM steering column identification, GM steering column lengths, and GM steering column compatibility.

GM Steering Column Compatibility, Interchange & Repair Guide

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

Choosing new wheels for a GMC Chevrolet truck. This project uses Speedway Motors GM Rally Wheels and new tires to enhance the appearance of the truck.

GM Rally Wheels

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

Read this guide on how to create a custom crankcase vent system for a Corvette using a Sure Seal air cleaner assembly kit. Learn how to keep pressure to a minimum and fabricate tubing to ensure a proper fit.

Installing a Crankcase Ventilation System

Tips and tricks to pull the most from your GM 602/604 platform.

Approved Upgrades for the GM Crate 602/604

We all need a little help from time to time. In this case, we had a grill shell on a 1946 Chevrolet Truck that could use some stiffening. Ride along as Heath installs support rods and rod brackets.

Installing Radiator Support Rods

Engine Family Facets

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Ignition Modules 2Nd Gen C K Series Gm Pontiac Large Journal V8 455

Electronic Ignition Conversion Kits 2Nd Gen C K Series Gm Pontiac Large Journal V8 455

Popular Parts

2nd Gen C/K Series Pontiac V8 Large-Journal 455 Distributor Caps and Rotors

2nd Gen C/K Series Pontiac V8 Large-Journal 455 Distributor Caps and Rotors | Speedway Motors

Shop 2nd Gen C/K Series Pontiac V8 Large-Journal 455 Distributor Caps and Rotors and get Free Shipping on orders over $175 at Speedway Motors.

2nd Gen C/K Series Pontiac V8 Large-Journal 455 Distributor Caps and Rotors

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MSD 8442 Distributor Cap and Rotor, MSD, GM V8 Points

ACCEL 8124ACC Distributor Cap & Rotor Kit , Socket Style, Black

PerTronix D650701 Flame-Thrower V8 Distributor Cap, Red, Socket-Type

ACCEL 8123ACC Distributor Cap & Rotor Kit, HEI Style

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