GMC G25/G2500 Van Engine Coolant Additives

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.

Classic cars ran on normal motor oils for decades, so why change now? The answer lies in the evolution of gasoline engines and how motor oil has co-evolved.

Learn how to successfully upgrade the cooling system for a 400 small block Chevy. Read tips for installing a water pump and auxiliary coolant lines using fittings and fuel hoses.

In this guide, Kevin demonstrates how to properly install an external oil cooler in his '54 Chevy Belair with a Big Block Chevy engine.

Learn how to install an external Transmission Cooler, to help keep the temperature of your transmission consistent.

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.

Learn how to replace a fuel sending unit. Our fuel gauge sending unit guide and installation video covers all you need to match your fuel sender and gauge.

Learn how to install a side detent shifter in a 1969 Chevy C10.

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

Rebuilding an engine? Stay organized by using a valvetrain rocker arm organizer tray while disassembling the valvetrain components. Learn some tips on why you shouldn't mix up lifters if you intend on using them again.