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Old Nov 9, 2015 | 08:35 AM
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Default water pump question

1969 corvette L46

I want to replace my water pump.. Do I buy the short water pump or the long water pump?... I would like an original visual appearance although it doesn't have to be to NCRS standards.

Any suggestions as far as a specific pump I should purchase?

Thanks
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Old Nov 9, 2015 | 09:35 AM
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Short-Style Pump for most 1955-72 cars & trucks (5/8" pilot shaft)
- Fits all 1955-68 S/B Chevy passenger cars, 1969-70 350 c.i.d. Corvettes and 1955-72 light duty trucks.
- Has 3/4" ball/ball bearing.
- Dimension from block surface to hub: 5-5/8". Inlet diameter: 1.80".

Long-Style Pump for 1969-87 V8, 90° V6 & 1973-86 truck (5/8" pilot shaft)
- Fits all 1969-87 S/B Chevy or 90° V6 passenger cars and 1973-86 light duty trucks. Does not fit Corvettes (use #8810 or #8812) or
late-model vehicles with serpentine accessory drive belts (use #8881).
- Has heavy-duty 3/4" ball/roller bearing.
- Dimension from block surface to hub: 6-15/16". Inlet diameter: 1.80".

Short-Style Pump for 1971-82 Corvettes 3/4" pilot shaft)
- Fits all 1971-82 S/B Corvettes.
- Has heavy-duty 3/4" ball/roller bearing.
- Dimension from block surface to hub: 5-13/16". Inlet diameter: 1.80".
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Old Nov 9, 2015 | 09:37 AM
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Hi b,
I believe the original water pump for your L-46 was pn 3782608 and was the short style.
Regards,
Alan

Added….Hi pws, you posted while I was looking it up to be sure!

Last edited by Alan 71; Nov 9, 2015 at 09:39 AM.
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Old Nov 9, 2015 | 10:43 AM
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Thanks for the great info.... I just put in a bid for a re-manufactured one on ebay

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Old Nov 9, 2015 | 12:39 PM
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Hi b,
If your bid doesn't work out consider Arthur Gould Rebuilders.
They rebuild both water and fuel pumps but also offer outright sales.
They may or may not have what you need in their stock.
Regards,
Alan
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Old Nov 9, 2015 | 01:04 PM
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Don't want to high jack your thread but what does it cost for a rebuild kit and can we / you do it at home??
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Old Nov 9, 2015 | 02:21 PM
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Hi k,
I 'believe' the re-build kits are about $60-$75 and the rebuild requires a press to install the bushing on the shaft.
Regards,
Alan
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