Ever wondered what people are talking about when they say "dual overhead cam"? Don't worry, because we're here to explain it ...

Overhead cam modular engines flip those priorities. A classic comparison of pushrod versus OHC layouts points out that the overhead camshaft, which eliminates the long rods, made higher engine speeds ...

General Motors has spent decades refining overhead-valve V8s while much of the industry pivoted to dual overhead cam designs, turbocharging, and downsized blocks. I set out to understand why Chevrolet ...