Any Chevy engine, if it's well-modified or just slightly warmed-over, requires a good set of valve seals. Originally, a small rubber O-ring, fitted in the second valve stem groove, served as the only ...

See if any of these scenarios sound familiar: Every morning when you start your car, a small cloud of blue smoke erupts from the tailpipe. Or, even though your engine doesn't leak oil and apparently ...

Q: I had a beautiful VW Scirocco that used oil at an increasing rate. Finally, a VW mechanic told me that the problem was probably the valve seals. He took out the seals and they looked like bacon ...