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1954-1955 Engines


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Would someone please advise me the diffeerences between the 1954 Oldsmobile 88 and 98 engines and the 1954-1955 Oldsmobile engines? This would be much appreciated as I have a 1955 Oldsmobile 98 Starfire which needs an engine and I have not been able to locate one. Thank you.

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'54 98 and Super 88 used the same 185hp, 324 cid engine. Base 88s were rated at 170 hp, the difference being - 98s and Supers used a 4-bbl carb. Base 88s used a 2-bbl. Swapping intakes would solve that, assuming your's is usable. Compression ratio for all three was 8.25 to 1. 3 7/8 bore, 3 7/19 stroke.

For '55 compression was increased to 8.50 to one, raising the hp to 202 for 98s and Supers, and 185 for base 88s. All other specs remained the same.

Paul

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Don't forget the 324 Olds was also used in the GMC truck till the end of 56 production along with the Pontiac V-8.

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