This happened to us when we ordered a set of Racing Head Service (RHS) 215cc heads for a small-block Ford Car Craft is putting together. We had an ultra-basic valvespring tool and a dial caliper in ...

Back in the early days, choosing cylinder heads for your small-block Mopar engine used to be a no-brainer. If you were on a budget, you'd simply freshen the factory steel heads and, perhaps, perform ...

Ask a big-block enthusiast what they need to make 600 hp and chances are they will point to some sort of rectangular-port head. No one in their right mind would select an oval-port head to make that ...

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 ...