Hitting on all eight cylinders
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Last Active: 6 Years Ago
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Hi Guys,
I'm trying to put a new pump on my 54 Mercury Monterey coupe (256 Y Block). The pumps I order seem to be the correct shape but way too big. The old pump had a 4 in impeller, and the replacements look like a scaled up version with 4.5in impellers, so they won't fit. Am I missing something? Also the pump has 30151 stamped on it, any thoughts?
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