The Olds and Pontiac 455 engines were both big-block V8s, but they had differing power outputs and development philosophies.

Here's how the two biggest-displacement V8 engines from Pontiac and Chevrolet ever stack up.

The 455 V8 was Pontiac's top-of-the-line large displacement engine in its powerful muscle cars of the '70s. Iconic names like the Pontiac GTO Judge and the Buick Grand Sport also used variations ...

Connect Plus, Apple CarPlay, telephone module, wireless internet access, carfinder, remote vehicle status, remote service, vehicle track Digital displays for vehicle speed, chosen gear, odometer ...

2 front USB and 2 rear USB charging points AM/FM and DAB radio AUX socket with VTR compatibility DVD Player Mark Levinson sound system with 13 speakers, subwoofer and Clari-Fi TMMusic restauration ...

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