Buick’s Century Luxus 455 sat at the crossroads of two eras, combining traditional American luxury with the last, loud gasp ...

Once upon a time, we went to the dyno to test a 455 Pontiac. It all started innocently enough. We wanted a hot street-engine dyno-test story for HPP, so we called Don Johnston at DCI Motorsports in ...

TO refresh your memory from last issue, the SD-455 that you see before you belongs to HPP contributor Melvin Benzaquen. We were using it as a mule for a fuel-injection swap into his '74 T/A when it ...

At the height of the muscle car craze, the engineering wizards at Oldsmobile created a "Frankensteinesque" big-block V8 with four valves per cylinder that could've become the most iconic American high ...

The Pontiac Super Duty 455 Firebird is a legendary muscle car revered by enthusiasts and collectors alike. Produced during a brief but impactful period in the early 1970s, the Super Duty 455 ...

1976 was a big year for America: Apple launched its first computer, Rocky made its silver screen debut, Charlie’s Angels premiered on television, and Jimmy Carter became President of the nation on its ...

Although the 840-hp (on 100 octane race fuel) 2018 Dodge Challenger SRT Demon has been blowing up the internet, another high-powered American muscle car was also introduced at the 2017 New York auto ...