With the short block assembled for our 383 supercharged project motor, it's time to shift our attention once again; this time to the heads and valvetrain. Like the rotating assembly, when it came to ...

If ever you've had to choose the right camshaft for your engine you understand how tricky it can get. It boils down to knowing what you want the engine to do and how the vehicle will be driven most of ...

A small gap with big importance in the performance and health of an engine - here's everything you need to know.

For Part I, covering the new combustion system, direct injection, and active fuel management: click here. For Part III, covering the block, crankshaft and lubrication systems: click here. Continuing ...

Secondly, adopting a digital valve train introduces a deluge of new variables that engineers can play with. There might be all sorts of benefits available, but getting to them requires an incredible ...

Scientists have developed an innovative, electrohydraulically actuated valve train for internal combustion engines, that enables completely free adjustment of stroke and timing, while at the same time ...

It’s true, nothing lasts forever and all good things tend to have a cycle. In this instance, we’re talking about the lifespan of your cylinder head’s valvetrain. Obviously a lot of this is contingent ...

The typical four-stroke engine is made up of hundreds of parts. These parts are all designed and engineered to work together to make a prescribed amount of power, torque, engine longevity, and other ...

At its most basic level, an engine is an air pump. Internal combustion engines breathe fresh air and expel wasted exhaust gases to make power. Something has to tell those intake and exhaust valves ...

The choke valve in an engine's carburetor, whether it's a Holley carburetor or another brand, helps a cold engine start by restricting some of the airflow into it. When the engine is cold, the choke ...