In case you’ve disassembled your Toyota VVTi engine to replace the piston rings or perform other repairing jobs, you’ll need to put all the parts back together correctly. We’ll see here how to ...

For engine builders, the racing world is filled with fantastic components that are designed to produce maximum power without sacrificing durability. But that doesn't mean that everything is always fun ...

Since we last left off with our Subaru build, we repaired and upgraded our EJ25 cylinder heads with a set of Kelford R-199-B (264/260 duration) camshafts and Supertech valvetrain, and got the head ...

It’s no secret that the easiest way to make more horsepower is to bump up the size of your engine. And, since an engine can only be overbored so much, the next, most logical, step is to install a ...