The one downside is that they usually don't produce as much torque. Here's how a SOHC motor works, according to Cars.com: In an OHC engine, the camshaft is in the cylinder head, above the valves ...

For automakers, the 1960s were a time of unbridled power and speed. Prior to the arrival and widespread implementation of emissions control devices in the 1970s, car manufacturers were pumping out ...