Our mechanic takes us through the cylinder head and valve train and continues his explanation of how engines really work. The Mechanic is the kind of chap who eat, sleeps and breathes engineering.

Cylinder head valves normally will not just bend unless the engine has experienced some sort of trauma. Bent valves can occur as the by-product of a timing belt failure, as the valves strike the ...

Virtually all current production-based cylinder heads incorporate a cross-flow design with intake ports (Photo B) located on one side of the head and exhaust ports (Photo C) on the opposite side. Some ...

Ferrari was so proud of its five-valve cylinder heads, it changed a naming convention that ran back over 25 years. For its previous mid-engine two-seaters, the three-digit name was derived from ...

Thunder Power's 4-valve cylinder head conversion for big-block Chevys bolts right onto production iron or aftermarket aluminum cylinder blocks. The heads even have the necessary bosses to add an extra ...

Ever since the first small-block V-8-powered Corvette rolled off the assembly line for the '55 model year, "Corvette heads" have been coveted by anyone building a high-performance small-block. In ...