Sure, there are lots of ways to add boost to your engine, but nothing says hot rod more than a classic 6-71 Roots blower. Great question—but first, a bit of history. The GMC blower, known as a Roots ...

Originally developed for industrial use, the 6-71 blower has become a hot-rodding icon. We delve into the details and test one on a 406-inch Chevy small-block.

People love a great big supercharger. You know, the kind that you'd see sticking out of the hood of a classic American muscle car or out of the last of the V8 Interceptors. They're amazing, but what ...