Modern engines contain hundreds – nay – likely thousands of different parts. There are valves and springs, at least one camshaft, engines also have bearing inserts, an oil pump, numerous gaskets, ...

Time was when a valve job was done with some valve-grinding compound and a vacuum cup on a stick. But no more. Today's high performance engines require the same machining precision in the valves that ...

Wear in engine valve systems arises from the complex interaction of mechanical loading, high temperatures and chemical environments at the valve–seat and valve–guide interfaces. Contact between the ...

I bought a 1969 Chevrolet Chevelle SS 396 recently and want to know if unleaded gas will harm my engine. Also, will using regular unleaded instead of high-octane unleaded hurt? I’d rather use the less ...

Federal-Mogul’s “lean tool steel” contains a higher proportion of chromium than standard tool steels, cost-effectively adding carbides that create a multiple-phase composite microstructure. Valve seat ...

Four-stroke engines, which make up 99% of vehicles on the road, rely on a system for managing air intake, compression, combustion, and exhaust within a sealed combustion chamber. Poppet valves are ...