Enginetech Hummer H1 Cylinder Head

Headers and manifolds differ in design and function. Long tube headers, shorty headers, and exhaust manifolds each have their pros and cons regarding performance and application.

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.

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.

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!

Tim talks about the new Edelbrock powder coated cylinder heads and provides a little history on Federal Mogul heads.

Tim shows off our aluminum cylinder heads for 348-409 Chevys.

Hooker headers are installed in a 1967 Pontiac Firebird for increased power and a boost in performance. See how to work through fitment of the steering box, clutch Z bar and starter.

In this detailed article, Tim will guide you on how to build a custom set of 241 Red Ram Hemi driveshaft headers. From the concept to the materials needed, he'll show you how the mockup and final assembly steps.

Engine Cylinder Numbers

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.