If the cylinder heads are on the engine, you will need to add air pressure to the cylinder to hold the valves in place. Our example is the Craftsman 47089 compression test kit using the 14mm long ...

Despite the systems approach to engine components, classic hot rodding is still a mix 'n' match affair. While choosing the right pieces is important, ensuring they work together properly is even more ...

Those wound-up pieces of high-tensile steel under your rocker arms work so hard closing your valves over millions of cycles that they could probably use a replacement right about now. We're talking ...

The black anodized finish increases resistance to stains and potential corrosion. Available for four-, six-, and eight-cylinder applications. Easy-to-read white lettering against the black anodized ...