Pontiac and Packard were the last inline-8 holdouts, with both manufacturers making their last I-8s in 1954. Let's shine a light on some of the most important straight-eight engines from the ...

From Pontiac's very own 326 V8, 389 V8, and 350 V8 to the 403 V8s, 265 V8, and Chevrolet's 250-cubic-inch inline six-cylinder, let's take a look at the engines that Pontiac offered along its ...

The standard engine in the 1967 Pontiac Firebird was a 230 cubic inch (3.8 Liters) inline six-cylinder with a single overhead cam (SOHC — an important automotive acronym) and 165 horsepower ...

1977 Firebird Trans Am. By the late ’70s, the Trans Am’s top engine was an emissions-choked 6.6-liter V-8 making a paltry 200 horsepower. The 3830-pound car could get to 60 mph in a sad 9.3 ...

Introduced in 1955, Pontiac's Strato Streak OHV V-8 had a displacement of 287 ci and was slightly bigger and heavier than the 265 Chevy introduced the same year.

Only two examples of the 1954 Pontiac Bonneville Special exist, and one is to be auctioned at Barrett-Jackson in Scottsdale.

GM also can produce the inline five-cylinder engine in its Pontiac, Mich., engine plant on the same line as the 4.2-liter inline six, using the same tooling, Kociba said.

Back when the pushrod V8 ruled American highways, the unconventially-minded John Z. DeLorean championed a high-performance overhead cam inline six patterned after the Mercedes 300SL motor. This is ...