Repairing cracked six-cylinder engine head requires a careful and precise process. Using the pinning method, skilled ...

Now, [Project Farm] is back at it. Is it possible to use JB Weld to cast an entire cylinder head for a lawnmower? It sure is. With a cast epoxy cylinder head, this engine will run for just long ...

The camshaft activates pushrods that move up and down to operate rocker arms that open and close the valves in the cylinder head. For the most part, a single overhead cam motor is a much more ...

The cylinder head on your mower just blew, and you’re out of commission. Or are you? You’ve got a 3D printer – couldn’t it save the day? If this bench test of plastic cylinder heads is any ...

Speaking of that high-revving eight-cylinder, it's receiving a new cylinder head with high-flow ports. The intake and exhaust valves are larger and the cams have been replaced, among other tweaks.