So which pump?

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Aug 15, 2012 | 02:45 AM

Louiseven

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Instructor

Joined: Sep 2007

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So which pump?

My 86 water pump has gone off. I have been pricing water pumps and the prices jump wildly. $140.00 for AC Delco up to $229.00 These prices are from the dealer and Corvette specialty places. Napa and other local parts places Non-Ac Delco or high performance, have been from $40.00 up to $80.00.

IF you replaced your Water pump what did you go with? Why? And How much? Thanks in advance.

Aug 15, 2012 | 06:37 AM

HlhnEast

Safety Car

Joined: Nov 2008

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From: Jacksonville FL

Did you check rockauto.com? They handle a lot of a/c delco stuff.

Aug 15, 2012 | 08:39 AM

wilcar

Drifting

Joined: Mar 2006

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From: Wabasha Mn

Stewart has some high perf. aluminum pumps, think I paid around $100 for a stage 1 through amazon. Others go with a $40 pump.

Aug 15, 2012 | 09:09 AM

oldalaskaman

Le Mans Master

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edelbrock

Aug 16, 2012 | 01:05 AM

84wannabezo6

Instructor

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edelbrock

Aug 16, 2012 | 11:51 AM

mtwoolford

Melting Slicks

Joined: Jan 2009

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From: folsom california

I really believe that the increase in flow of a pump with a cast or machined impeller where the vanes are curved is well worth the money over the cheaper stamped sheet metal "paddle wheel" designs...especially if you are considering any type of a pulley "underdrive kit".

and despite what the parts listing may say (especially with cheaper pumps) make sure the shaft outer diameter matches the i.d. of the water pump pulley...corvettes typically use a larger shaft of 3/4 inch od, lesser pumps may have a 5/8" od.

I used a weiand team G pump on a VB Monza some years back...not an easy car to cool by any means...it allowed installing a system of under drive pulleys with no loss of coolong.