Earlier this year we bolted a cam and headers on a 5.3L Gen III called Little Bro and made 458 hp at a screaming 6,600 rpm. That engine revealed the potential of a lesser-known family of iron-block GM ...

We recently had a chance to crawl all over a new ride to the Chevy High Performance stable, an LS-powered 1966 Chevelle SS clone, owned by our own associate publisher, John Barkley. The basics include ...

One of the most notable additions to the current-generation Chevy Tahoe and Chevy Suburban is the 3.0L I6 LM2 turbodiesel Duramax engine, as not many other vehicles outside of General Motors’ ...

Building a powerful engine has long been about metric dollars. As the horsepower numbers increased, the zeros before the decimal point seemed to keep jumping up in the same steep curve. With today's ...

The ante has just been raised. What we have here is a junkyard 6.0L engine with stock production L92 heads, a not-so-big hydraulic roller cam, and an 850-cfm carburetor that makes an astonishing 1.5 ...