Spectre Performance GMC Valve Covers and Accessories

A guide on how to check piston to valve clearance to prevent interference. See what tools are used to make this process easier.

Learn about the different types of brake valves. Our guide covers Metering, Residual, Proportioning, and Combination valves to understand your brake system.

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

In this Tech Tip, John confirms a customer question regarding the need for a proportioning valve on his ’55 F100 brake build.

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

Steve provides a step-by-step guide to install the Speedway Motors GM 10-Bolt Polished Finned Aluminum Rear End Cover.

Learn how to install and properly tune brakes with an adjustable proportioning valve block.

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.

There is a lot to consider when choosing the proper spark plug for your engine's intended application and power level. Let us take some of the guesswork out with our spark plug buyer's guide.

Keep your rear cylinders running cool in a high performance engine by installing a water bypass kit to the intake manifold.