This diagram shows the major cam events through one full cylinder cycle (two crank revolutions or 720 degrees), beginning at TDC firing. The exhaust lobe and valvetrain is closer to the front, and ...

It's springtime! Time to start working on your project car, learn a new wrenching skill, discover what everything is under the hood (and how it works), or just spruce up your daily driver. All month, ...

It's common knowledge that most modifications made to an engine involve a tradeoff somewhere in the overall equation. You might want a higher compression ratio, but the trade-off here is a need for ...

Like most things we're not familiar with, many look at degreeing a camshaft as some sort of black magic voodoo that only the most expensive of engine builders in brightly lit "clean rooms" know how to ...

One Thing we've discovered about the OHC modular motors is that they are highly sensitive to cam timing. Unfortunately, the production tolerances are such that the cam timing can be off significantly ...