Given the enduring legacy of LS engines and the fact that they are still being used in GM vehicles today, there's no shortage of information available about the line's development and history.

GM has built dynamite small-block V-8s for generations, but they blew up the platform with the supercharged LT5.

Thanks to them, even tiny four-cylinders can make the type of numbers that used to be reserved for big-displacement engines ... an inexpensive junkyard Chevy LS V8 and some upgraded hardware.

We put together a budget 5.7L LS engine (327 cubic inches) to show that you don't have to go broke to enjoy the benefits of an EFI-equipped LS engine in your classic Chevy. The engine ended up ...