In the ’60s, when muscle-car mania was upon us, the factories did their best to satisfy the speed and power cravings of their customers. There were the Buick GSX, Dodge Hemi (in Coronet, Challenger, and Charger), Ford 427 (Fairlane and Torino), Olds (W30), Plymouth Hemi (GTX, ‘Cuda, Roadrunner), and of course, Pontiac GTO—perhaps the car that started it all. The pony-cars, Mustang, Camaro, Cougar, Firebird, Barracuda, Challenger, and Javelin, eventually had big-block stump-pullers available as a powertrain option.
In spite of the profusion of factory-built muscle, a few customers always wanted something else. Something more. Something the factories couldn’t, or wouldn’t, produce. After all, the automobile industry is based on mass production, which gets cars built faster, keeps the prices within reason, and simplifies parts department stocks.
Cottage-industry suppliers immediately…