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  #1  
Old 09-11-2011, 04:08 PM
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Ummgawa Ummgawa is offline
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Default What would be a good dual electric fan set up for 70 GTO?

Has someone done a dual electric cooling fan set up for a 68-72 A-body? I was told a Mark 8 was a good fit, as was a 2008-up Camaro dual fan assembly. Any suggestions? Running a 455HO,a six speed, no air {yet},3:73...convertible.
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Old 09-11-2011, 04:50 PM
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On my 70 Chevelle I used a dual fan assembly from a 98-02 F-body and it fit the stock radiator perfectly. I made a couple of small brackets for it to slide into on the bottom and the radiator support held the top.
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Old 09-11-2011, 05:00 PM
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Dude, thanks a million.
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Old 09-11-2011, 06:16 PM
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the Mark VIII is a single fan, and outflows any of the dual fan setups I've seen. It is always my first choice as long as there is room for it.
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Old 09-11-2011, 09:17 PM
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Quote:
Originally Posted by camcojb View Post
the Mark VIII is a single fan, and outflows any of the dual fan setups I've seen. It is always my first choice as long as there is room for it.
use it in all my cars! pick it up at the local junk yard for $35

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Old 09-12-2011, 01:34 PM
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What year Mark VIII? Wasn't 95 the last year?

Jody, how did you wire it? Any special relays, etc? Any help will be greatly appreciated.
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Last edited by Ummgawa; 09-12-2011 at 01:41 PM.
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Old 09-12-2011, 01:59 PM
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Quote:
Originally Posted by Ummgawa View Post
What year Mark VIII? Wasn't 95 the last year?

Jody, how did you wire it? Any special relays, etc? Any help will be greatly appreciated.
you find them on Ebay all the time. They make one and two speed versions, both work fine. You'll need a 65 amp relay minimum (I use 75 amp) and the relay ground can be controlled by your computer if used, a simple grounding temp sensor from Ron Francis, switch, or something like DC Controls depending on budget.

http://www.amazon.com/s/ref=nb_sb_no...elay&x=14&y=13

http://www.summitracing.com/parts/SUM-890017/
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SPECIAL THANKS TO:
Jacob Ehlers and Amsoil for the lubricants and degreasers for my 70 Chevelle project
Shannon at Modo Innovations for the cool billet DBW bracket
Roadster Shop for their Chevelle SPEC Chassis
Dakota Digital for their Chevelle HDX Gauge Package
Painless Performance for their wiring harness

Ron Davis Radiators for their radiator and fan assembly.
Baer Brakes for their front and rear brakes

Texas Speed and Performance for their 427 LS Stroker
American Powertrain for their ProFit Magnum T56 kit
Currie Enterprises for their 9" Third Member
Forgeline for their GF3 Wheels
McLeod Racing for their RXT street twin clutch
Ididit for their steering column
Holley for their EFI and engine parts
Lokar and Clayton Machine for their pedals and door and window handles
Morris Classic Concepts for their 3 point belts and side mirrors
Thermotec for their heat sleeve and sound deadening products
Restomod Air for their Tru Mod A/C kit
Mightymouse Solutions for their catch can
Magnaflow for their 3" exhaust system
Aeromotive for their dual Phantom fuel system
Vintage Air for their new Mid Mount LS front drive
Hydratech Braking for their hydroboost system
Borgeson for their stainless steering shaft and u joints
Eddie Motorsports for their hood and trunk hinges and misc parts
TMI Products for their seats, door panels, and dash pad
Rock Valley Antique Auto Parts for their stainless fuel tank
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Old 09-12-2011, 02:14 PM
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This is a strait up redneck carburated 455 Jody, with some fancy schmancy stuff thrown in. For the old school approach, would the harness be the same? I'm trying to finish the speedster nice and the 70 GTO a little more low budget. Can you recommend a wiring harness if the factory one isn't available?
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Last edited by Ummgawa; 09-12-2011 at 02:16 PM.
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Old 09-12-2011, 04:39 PM
6spdcamaro 6spdcamaro is offline
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I put a 98-02 fan and radiator set up in my camaro, so I have no Idea on fitment for the A-body. But after starting my car for the first time, and letting it idle for 30 minutes, the temperature was pegged at 180. The radiator was $60 shipped, and the fans were 150 off of ebay brand new.
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Old 09-12-2011, 07:02 PM
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What INTMD8 said, dual fan from 98-02 F-body fit my 70 Chevelle perfect. Aluminum radiator, dual fans, heavily modified BB, stays at 180. Pull-a-Part, $25.00
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