Among the advantages of these engines are factory aluminum heads, lightweight composite intakes and in some cases aluminum blocks. Many, such as the 5.3L (RPO LM7) have a cast-iron block with aluminum ...

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 a car is being upgraded in terms of horsepower and fuel efficiency, exhaust upgrades tend to be near the top of many ...

Swapping an LS engine into a car is popular among folks inclined to do such things. It's a great way to gain the horsepower potential and reliability that makes the General Motors LS engines so ...