So how do you build a 450-inch LS engine? The answer involves lots of aftermarket parts and a big stack of cash. AHP started out with a Concept Performance LSR aluminum block and knocked its bores out ...

"This one was built for a river race boat," Tom Nelson explains. "In that racing series, the rule set allows you 470 cubic inches if the engine is naturally aspirated, or 260 cubic inches if there are ...

Here at Super Chevy, we love dyno testing, but that doesn’t change the fact that some components offer greater differences in power enhancement than others. Things like headers, carbs, and roller ...