With our project engine block fully machined and the Butler stroker kit balanced and checked, we are almost ready for preassembly using the myriad performance parts that were provided by Summit Racing ...

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 ...

When it comes to old-school stock car racers and stock cylinder heads, Chevrolet's long-running "double hump" cylinder heads have always been the gold standard. They are among the best stock heads ...

I worked as a machinist in an automotive machine shop in the early 1980s before my career took me into the aerospace sector. The shop's high volume of mundane engine rebuilds and turning brake drums ...

Horse Sense:With the Z head, Ford Racing Performance Parts has come full circle. Back in the early 5.0 days, its first cylinder head was a streetable-but not emissions-legal-offering called the J302.