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03-09-2017, 04:24 PM
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#1 |
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Registered User
 
Join Date: May 2007
Location: Rapid City South Dakota
Posts: 2,359
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WTB water pump pulley
Looking for a 2 groove big block pulley.
3995648
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Turp Mcspray New life for an old 2wd, farm blazer http://67-72chevytrucks.com/vboard/s...d.php?t=505987 My Blazer build http://67-72chevytrucks.com/vboard/s...d.php?t=342299 |
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03-09-2017, 05:55 PM
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#2 |
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Senior Member
Join Date: Jun 2009
Location: Belews Creek , NC
Posts: 4,220
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Re: WTB water pump pulley
I think I may have one I will check and see
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Larry It is easily overlooked that what is now called vintage was once brand new. "Project 68" paypal.me/ldgrant |
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03-11-2017, 11:26 AM
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#3 | |
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Registered User
Join Date: May 2007
Location: Rapid City South Dakota
Posts: 2,359
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Re: WTB water pump pulley
Quote:
Thanks.
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Turp Mcspray New life for an old 2wd, farm blazer http://67-72chevytrucks.com/vboard/s...d.php?t=505987 My Blazer build http://67-72chevytrucks.com/vboard/s...d.php?t=342299 |
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03-11-2017, 01:38 PM
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#4 |
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Senior Member
Join Date: Jun 2009
Location: Belews Creek , NC
Posts: 4,220
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Re: WTB water pump pulley
I have this one
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Larry It is easily overlooked that what is now called vintage was once brand new. "Project 68" paypal.me/ldgrant |
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03-11-2017, 02:26 PM
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#5 |
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Registered User
Join Date: May 2007
Location: Rapid City South Dakota
Posts: 2,359
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Re: WTB water pump pulley
That isn't the one. Can you post the number on it, for reference? The 648 pulley has both grooves, the same diameter. Thanks!
__________________
Turp Mcspray New life for an old 2wd, farm blazer http://67-72chevytrucks.com/vboard/s...d.php?t=505987 My Blazer build http://67-72chevytrucks.com/vboard/s...d.php?t=342299 |
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03-12-2017, 09:45 AM
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#6 |
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Registered User
Join Date: Aug 2010
Location: commerce ga
Posts: 896
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Re: WTB water pump pulley
I have a 2 grove water pump pulley 3995646
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03-12-2017, 10:00 AM
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#7 |
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Senior Member
Join Date: Jun 2009
Location: Belews Creek , NC
Posts: 4,220
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Re: WTB water pump pulley
I looked through my other stash and only have single groove pulleys, I didn't see a number on the one I posted
__________________
Larry It is easily overlooked that what is now called vintage was once brand new. "Project 68" paypal.me/ldgrant |
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03-12-2017, 01:49 PM
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#8 |
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Senior Member
 
Join Date: Nov 2012
Location: Shawnee, KS
Posts: 1,824
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Re: WTB water pump pulley
Part no. 3927789 was changed to 3995648 some time in late 1971. So either number may work. This pulley was used on a number of GM cars and trucks. It was used on 6 Cyl as well as 8 cyl. May you can use this info to help in your search
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Roger Koop |
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03-12-2017, 03:59 PM
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#9 |
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Registered User
Join Date: May 2007
Location: Rapid City South Dakota
Posts: 2,359
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Re: WTB water pump pulley
Thank you! I knew that there was another number, but didn't know what it was.
The diameter of the pulley is 6 1/4", the 646 is 5 3/4".
__________________
Turp Mcspray New life for an old 2wd, farm blazer http://67-72chevytrucks.com/vboard/s...d.php?t=505987 My Blazer build http://67-72chevytrucks.com/vboard/s...d.php?t=342299 |
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03-12-2017, 06:08 PM
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#10 |
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Moderator
 
Join Date: May 2007
Location: Southern Cal
Posts: 20,031
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Re: WTB water pump pulley
I know I have a full set in my cabinet, I'll look and see if I have a lone water pump pulley.
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1972 C/10 Cheyenne Super SWB. Restored, loaded, slammed. 1968 C/10 50th Anniversary LWB. Unrestored, stock, daily driver/work truck. RIP ElJay RIP 67ChevyRedneck RIP Grumpy Old Man RIP FleetsidePaul |
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04-30-2018, 05:47 PM
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#11 | |
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Registered User
Join Date: Dec 2010
Location: Sacramento, CA
Posts: 151
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Re: WTB water pump pulley
Quote:
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70 Chevy C20 CST 350 A/C 72 Chevy Custom Camper 402/ 400 A/C 73 Pontiac Trans Am 455 07 Corvette Z51 LS2 
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