For a high-performance street car, at a minimum you want a precision, three-angle valve job with relatively wide seats able to stand up to years of hot rodding. Quickie parts-store valve jobs won't ...
The PCV valve (positive crankcase ventilation valve) is a vital part of the emissions controlsystem on most vehicles. Not every vehicle has a PCV valve, but most do. If yours has one, and if your ...
The position of the valve seat in the head is also important. Each time the valve seat is machined, >> material is removed and the seat “sinks” into the head, moving deeper into the port. This tends ...
We are three-quarters of the way through the rebuild of a 383-inch big-block for the car we have dubbed the Cornfield Coronet. In previous issues we covered the disassembly of the engine (July '12), ...