Thread: 287 oil pressure
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Old 05-18-2020, 05:11 PM
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Bill Hanlon Bill Hanlon is offline
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Join Date: Feb 2005
Location: Fredericksburg, TX
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Here are the results of measuring the mounting area of a M54 (1955-58) and a M54D (1959 and later) pump
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My Pontiac is a '57 GMC with its original 347" Pontiac V8 and dual-range Hydra-Matic.
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