If your engine's ever encountered severe overheating or head gasket failure, there's a good chance the cylinder head or block is warped. Unless you're Superman, there is no physical way to visually ...

Whether building an engine from scratch or modifying the engine already in your car, there's no doubt that choosing the right cylinder heads for your combination can greatly affect the horsepower and ...

Cylinder head porting is one of those garage mods that lives somewhere between speed-shop legend and flow-bench science. Also referred to as port and polish, the idea is simple: Open up the intake and ...

Combustion chambers have come a long way since these old "real" Pontiac V-8 open-chamber heads, circa 1968 and later. Notice there is no designed-in swirl or mixture motion whatsoever, just the first ...

Indy Cylinder Head has been making aluminum cylinder heads for diesel and alcohol tractors since the mid-'80s, so it was no surprise to us that the billet aluminum head we saw at the 2010 Scheid ...