At Circle Track, we're all about helping you do more for yourself. But sometimes that's just not realistic. That's not casting doubts on the intelligence of our readership. Just like your mom, we ...

We have already discussed here a wide list of procedures you can do yourself on your Toyota VVTi engine, from removing the valve cover to the crankshaft. In this article, our focus will be on how to ...

For an engine to work, a fresh mixture of air and gas has to be able to enter and exit the cylinders. These induction and exhaust processes also need to occur at the correct moments, otherwise the ...

Big-cube performance is very popular with hobbyists, and for Pontiacs that usually includes a 400 or 455ci engine. When attempting to extract maximum performance from such combinations, many owners ...

Cylinder head valves normally will not just bend unless the engine has experienced some sort of trauma. Bent valves can occur as the by-product of a timing belt failure, as the valves strike the ...