For over a century people have been modifying their factory stock engines by adding performance-enhancing parts. While some have transformed their vehicles into absolute road monsters adding hearty ...

Hypothetically speaking, let's say you had the wrenching skills necessary to build a 600hp Rat motor for $6,500. With the astounding airflow potential of today's conventional, 24-degree, big-block ...

We were a bit skeptical of the direct injection (DI) 5.3L L83 mills when they first started showing up in the salvage channel. After all, the 5.3L LM7 was a proven LS-swap powerhouse for those on a ...