The engines of yesteryear were pretty simple, with tappets clackity-clacking away on cam lobes, opening valves, and making a ruckus while doing it. Mechanical lifters were adequate for valve operation ...

We may receive a commission on purchases made from links. There are many V6 and V8 engines that use camshafts located within the engine block and pushrods to activate overhead valves. In those engines ...

Ticking noises from a car's engine are rarely welcome, but if your lifters are clicking away in the background, it's worth ...

There are very few sounds sweeter to a gearhead than a small-block spinning past 8,000 rpm. For anyone who appreciates internal-combustion engines and horsepower, a race engine spinning at high rpm is ...

Camshaft technology is continually changing. From new lobe profiles to various forms of lobe placement, each manufacturer takes its own approach to modern performance. While flat-tappet grinds remain ...

At the very least, tearing down, inspecting, and cleaning hydraulic lifters is good engine hygiene that can contribute to long service life in your classic car. It’s also a great way to inspect the ...

However, these numbers reflect all units sold, and not all of the models listed were equipped with engines susceptible to the GM lifter issue – for example, trucks equipped with the 3.0L I6 LZ0 ...

Add Yahoo as a preferred source to see more of our stories on Google. The engines of yesteryear were pretty simple, with tappets clackity-clacking away on cam lobes, opening valves, and making a ...