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03-16-2007, 12:58 PM
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#1 |
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Junior Member
Join Date: Jun 2006
Location: St. Louis
Posts: 26
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Big blocks and long water pumps
Is it possible to use a long water pump on a big block? I want to run a serpentine pulley setup from March performance which requires the use of a long water pump. I spoke with technical support and was told to measure the distance from the front of the engine block to the radiator see if the dimensions are within limits; however, I do not have the core support or radiator installed yet. Will this setup work?
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03-16-2007, 03:29 PM
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#2 |
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Senior Member
 Join Date: Mar 2003
Location: Colfax-California
Posts: 8,650
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Re: Big blocks and long water pumps
The fan clutch will not fit with the long water pump, you may have to go to an electric
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03-16-2007, 05:46 PM
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#3 |
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Senior Member
Join Date: Aug 2004
Location: Centennial, CO
Posts: 2,991
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Re: Big blocks and long water pumps
I agree, tried it with a stock 89 setup and the mech fan was not happening. From the fan mounting flange of the short pump to the rad core it's about 4.5in. I think the long pump is probably an inch longer at least.
__________________
ClusterTruck: 68 C10 Bought in 89, wrecked in 03. Slow low $ rebuild started '17. 6.0 & TKO http://67-72chevytrucks.com/vboard/s...d.php?t=788602 93 K1500 Short Step, 350, NV4500, EBL flash ECU. Vortec heads & roller cam someday... 05 Jeep Wrangler Unlimited. 3” lift & 6-speed 02 E320 the insurance total “free car” 13 Tahoe LTZ |
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03-16-2007, 06:03 PM
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#4 |
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Registered User
Join Date: Sep 2002
Location: DFW Texas
Posts: 2,269
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Re: Big blocks and long water pumps
I don't know about the serpentine set-up but I have a long pump on my 72.
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