GM ALUMINUM WATER PUMP

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**Serbigblock** · #1 11-10-2006, 10:05 PM

Does anyone know what GM aluminum water pump with casting number 3975928 was used on?????????

**PeteLeathersac** · #2 11-11-2006, 12:42 AM

A quick Google looks like factory on 502's also the '00 ZL1 cars, maybe more...looks like lotsa' guys running it on old ZL1's etc. too. .

Here's one on eBay too. .

http://cgi.ebay.com/ebaymotors/CHEVY-GM-...sspagenameZWD1V

~ Pete

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