Completely rebuilt by Denny's Auto Machine ... Also includes 2156 or 7156 edelbrock and milodon hp water pump. Engine is test run. Block #485428 Date is 6-20-3. Stamping on front YY. 2 year/ 24,000 ...

Between 1968 and 1970, Buick joined two of GM's other divisions in unveiling 455 cubic-inch V8s. Oldsmobile was first with its Rocket 455 engine, and Pontiac and Buick both followed suit in 1970.

The 4-4-2 got the big engine, and the H-O 455 was discontinued (until 1972, but that’s another story). Buick had the perfect platform for the muscle – the GS series, which had been first ...