It’s a cliche to say something is a ‘game changer,’ but that’s exactly what GM Performance Parts’ E-ROD crate engines are. They’re LS-series powerplants, with pending 50-state street legality – the reliability and power of a modern fuel-injected LS3 or LS7 V8  ready to drop into practically any classic or race car. Watch this video and see how Duntov Motor Company put 505 horsepower under the hood of their new-production Corvette Grand Sport.

There’s something undeniably sweet about a classically cool car like the GS with an engine that starts easily on a cold day, idles like a purring kitten, and delivers power as smoothly as a 2010 Z06. The fact that it’s squeaky-clean at the tailpipe and delicately sips pump gas instead of gulping race fuel is just the icing on the cake. If there’s such a thing as a “practical race car,” this is it.