A big reason that the small-block Chevy was so popular with the Bow Tie crowd was because for decades it changed very little, making upgrades and interchangeability easy. The same can be said for the ...

One of the greatest strengths of LS and Vortec engines is the interchangeable nature of their parts. This makes the LS platform very versatile, and it lets engine swappers dial in just what they need ...

Even the competition has to agree, Chevy's LS-engine family is more than just a worthy successor to the original small-block; it's one hell of a motor. The Blue Oval boys are jumping up and down about ...

While some Gen IV engines do use cathedral port cylinder heads, pretty much all are of the later, LS6 design. By 2009, cathedral port use was mostly restricted to just the 5.3L engines while all but ...