Shelby has proven their quality and performance with the ’65 and ‘66 Mustang models, but this 1967 Shelby Mustang GT500 427 presents the second generation of the Shelby Mustang performance vehicles. This particular is a little bit different because it has 427 engine instead of 428, but doesn’t mean that makes less power.
The ’67 Shelby GT500 from the factory came with the 428 engine, but the owners have used and abused this engine to the point of failure. The 427 came as a replacement from the Shelby official dealership, but it turns out that this engine is more reliable and more powerful than the 428. The history tells that the 427 is a race engine that was used in the NASCAR racing series in the early 60s.