The Vortec 4200 inline-6 outperformed its size, and even though it was used in SUVs from GM and Chevrolet, its existence has nearly been forgotten.

Jon Hall is a diehard hot rodder with not only a long list of hot rods, customs, and street rods, but he’s also the owner of Shadow Rods and Motor City Flatheads, companies that produce stamped steel ...