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Old 03-19-2006, 06:39 PM
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SBC 'Short' Water Pump vs Corvette Pump

I am looking to get a high flow water pump for my 400 SBC going into my 69' Corvette. Is there any difference between the 'Short' SBC water pumps and the 'Corvette' water pump? Both pumps are considered 'Short', I just didn't know if there is any other difference such as outlets etc.
Seems that most of the speed shops have tons of 'Short' water pump selections but only a handful for 68-82 Corvettes.
Any advice would be appreciated.
Thanks!
Elm
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Old 03-19-2006, 07:00 PM
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Doc here,

I looked up the part number for a 69 corvette BB, and one for a 69 El Camino BB, the part number is the same.

Might have the local parts house do a side by side compairson for you...

The only difference I could see is that the Corvette uses a slanted radiator mount , where the El Camino Does not..which may require more distance in on the fan into the shroud..but that would be a spacer issue.

Doc
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Old 03-19-2006, 07:48 PM
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True "Corvette water pumps" had larger bearings and, therefore, larger shafts. I think the standard short pump had a 5/8" shaft and the Corvette pump had a 3/4" shaft.
JA
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Old 03-20-2006, 07:25 AM
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How about for the Small Block?

Doc,
You indicated the BB version is the same for the Vette's and others.
Do you know if small blocks are similar?
Since most aftermarket water pumps claim to have 3/4" bearings, I don't think that is a factor anymore.
Thanks!
Elm
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Old 03-20-2006, 10:36 AM
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Quote:
Originally Posted by johnnya
True "Corvette water pumps" had larger bearings and, therefore, larger shafts. I think the standard short pump had a 5/8" shaft and the Corvette pump had a 3/4" shaft.
JA



This is true.
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