Why OVERHEAD CAMS and How Did WE GET HERE?
Why OVERHEAD CAMS and How Did WE GET HERE?  
Podcast: Cycle World Podcast
Published On: Wed Jan 21 2026
Description: Kevin will start with atmospheric intake valves and someone from the 1800s, but for real we are talking about Overhead Cams here. Why has OHC become the standard for four-stroke-engine valve operation and what are its advantages. Also, you won't believe how old the technology is. Join Kevin and Mark for the bumpy world of cams above the head.