During the 1960s and early 1970s, most American V8s were heavy and built simply, and the Pontiac SD-455 is no exception.

Despite its 370-horsepower rating from the factory, this old-school muscle car engine was capable of much more than that.

One of 16 built with three-speed manual, documented and fully restored to factory specifications.

A hidden gem in the muscle car market, this overlooked classic packs a big-block punch without breaking the bank.

To blame for the transformation of the mid-size coupe is Jorge Buenrostro of Rostro Performance. He and his team were the ones who spiced up things for the owner. A while ago, the Grand National ...