Compared to beltdriven superchargers or nitrous oxide, today's electronic controls make it fairly easy to manage big power gains on a turbocharger. Although officially GM says an LS1 block "has been ...

So you've done the heads and cam swap and added all the bolt-ons your late-model LS-powered Trans Am or GTO can stand, but 11-second time slips are just not scratching the itch anymore, and you're ...

With more than 2,000 horsepower put to the pavement, Mark Koehler's drag radial Trans Am blew through the 2010 racing season with a best e.t. of 7.50 at 194 mph. The combination that generated that ...

GM's LS engine is a gem. Wether it's factory-fitted to your production car, dropped in as a crate engine, or swapped from a junkyard wreck, the General's small-block V8 is nearly limitless. But what ...