You've probably read this line a dozen times: "It's never been easier to make horsepower than right now." While that's true, it also means everything else in the engine is now more highly stressed.

Cam lift and timing can put the valves dangerously close to the piston. We show you how to check the clearance In all but most the mild engine builds, taking extra time to check piston to valve ...

The story of how Honda developed an oval-piston race engine that ultimately failed but still made history along the way.

The inlet and exhaust valve timing of a piston engine plays a large role in engine performance. Many modern automotive engines have some sort of variable valve timing, but the valves are still ...

Less maintenance and a smoother operation are just a few benefits of running hydraulic lifters in engines, which is why just ...

The idea of camless automotive engines has been around for a while but so far has been limited to prototypes and hypercars. [Wesley Kagan] has been working on a DIY version for a while, and ...

Automotive giant General Motors has filed patents for a two-stroke engine of the type whose excess emissions took it off the road decades ago as a technology seen as having no future.The patent is for ...

Don Morris an Aviation Technologies Professor at Southern Illinois University has created a range of intricate laser cut engine kits with fully functional gears, pistons, valves, and cams design to be ...

For as long as internal combustion engines have existed, pistons have been round. This wasn't necessarily because circular ...

In the 1950s, Commer created a special engine known as the TS3. Its unique design allowed it to stand out, and many still recognize it today.

Over the roar from a 110-cc, two-cylinder engine, Pinnacle Engines founder James Cleeves (nicknamed Monty), pointed out a window in the block. "You can see the cylinder sleeve moving for the intake ...

1. EcoMotors is developing high-efficiency engines — specifically the unique opoc (Opposed Piston Opposed Cylinder) engine — for use in cars, light trucks, marine applications, agricultural vehicles, ...