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The Olds and Pontiac 455 engines were both big-block V8s, but they had differing power outputs and development philosophies.
We build-up an Oldsmobile 455ci motor for more power. Find all the details inside Popular Hot Rodding Magazine.
Both Oldsmobile and Pontiac had a V8 engine called the 455. Even though both were owned by General Motors, the engines are similar, but not the same.