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

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

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

How does a cooling system work? Why is your engine overheating? What parts should you be giving your attention to? This guide answers all your questions.

Car Cooling System Components

Tim talks about the rare V8-60 engine and the parts we have to offer for one.

Speedway Tech Talk - Ford V8-60 Flathead Parts

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

Tim talks about soem of the early Ford hubs & bearing components we offer.

Speedway Tech Talk - Early Ford Hubs & Bearing Components

Tim explains the process of adjusting Buick Finned Drums to fit Speedway's self-energizing backing plate assembly.

How-to Adjust Buick Finned Drums

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

GM Steering Column Compatibility, Interchange & Repair Guide

What happens when you advance or retard a camshaft? In this tech article, we explain the pros and cons of installing your cam straight up, advancing or retarding.

Camshaft Timing Tips

Engine Family Facets

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OBS F-Series 401 Buick Nailhead Timing Components

OBS F-Series 401 Buick Nailhead Timing Components | Speedway Motors

Shop OBS F-Series 401 Buick Nailhead Timing Components and get Free Shipping on orders over $199 at Speedway Motors.

OBS F-Series 401 Buick Nailhead Timing Components

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