GMC Cylinder Heads

Step back in time with our modern reproduction of the iconic Chevy 461 double hump cylinder heads, now cast in lightweight aluminum! In this video, Joe and Wyatt discuss the features that bring the vaunted camel hump heads into the 21st Century.

Need help selecting the best cylinder head gaskets for your engine? Click here to learn the differences between copper, steel shim and MLS head gaskets. Plus install tips!

Learn how to re-build a junkyard Small Block Chevy. A step-by-step guide on how to select a SBC, machine the valve guide bosses down, and what parts to use to upgrade to your personal liking.

Inside GM’s Gen V LT engine family: history, tech, and performance of each LT engine option available.

Engine Cylinder Numbers

Learn how to bench bleed a new master cylinder properly to prevent on-car brake system bleeding issues. Removing the air before installation is critical and this video tutorial will walk you through the process.

Leaking engine cylinders is an important preventative maintenance test to do while racing. Learn the steps to perform this test and how to indicate proper engine tuning.

Whether you're trying to troubleshoot engine issues or want to get an idea what's going on inside that junkyard jewel that you just hauled home, a leak down test is a great way to ascertain the condition of an engine's cylinders without pulling it apart.

Lake Speed Jr. from Total Seal Piston Rings tells us when it's acceptable to do a DIY cylinder hone at home, and when it's time to head to the machine shop.

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.