The 1955 Pontiac Star Chief wasn't all about the show – it had the go-to match. A robust 287 cubic-inch V8 engine lurked under the hood, churning out a respectable 180 horsepower and 275 lb-ft ...

When the Tri-Five arrived for the 1955 model year, Pontiac had two main models in showrooms ... the presence of a 317-cubic-inch (5.2-liter) V8 engine under the hood. It was the only option ...