When we left Project Groundhog at the end ofPART 1, we had just finished assembling the short-block. To briefly sum up the scope of the build, we started with a down-in-the-dirt (literally) Gen III ...

When does "just a little bit more" become too much of a good thing? The answer is that it occurs a lot sooner than most hot-rodders think. We're not sure when it happened, but at some point an engine ...

While the 5.3L LS4 V8 was the first car engine to feature Active Fuel Management (cylinder deactivation) technology, it was not Flex Fuel capable and did not have variable valve timing. As mentioned, ...

Loyal readers of Super Chevy (you know who you are) will no doubt remember our first adventure with Modern Mouse last month, but here is a recap for those of you just joining the party. Back in part ...

In general, the General Motors Vortec 5.3-liter V8 is a powerful, dependable engine. If you're not familiar with General Motors' Vortec engines, they are a family of small-block V8s that GM put into ...

Readers with a few muscle car moments under their belt will realize that any traditional 327 small-block that produced nearly 500 hp was considered a race motor. This little 5.3L (324 cubic inches) ...