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Old 12-12-2009, 09:18 AM
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Fan Control Switch

Im converting to electric cooling fans on my 1974 350 sbc corvette.
I already them wired and relayed. Can someone advise me on a fan switch I can use and what temp thermostat to use. I would like to install the switch in the cylinder head. and 185 degree turn on. Im looking for a common switch in case i ever need a replacement on the road.

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Old 12-14-2009, 09:43 AM
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You can get the whole kit here:
http://www.jegs.com/i/JEGS/555/10560...oductId=758607

Or just the switch here:
http://www.jegs.com/i/Painless-Perfo...oductId=744377
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Old 12-14-2009, 11:51 AM
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temp switch

Thanx for the links.
I was wondering if anyone knew of an oem gm style switch at the lower temp i wanted (185 turn on)I know fuel injected vehicles run at higher temps. I wanted an oem switch in case it ever failed, replacement would be easy at any local auto store.

Anyway i will probably just end up running dual switches and relays. My fan is a 2 speed.

Switch 2 (185 turn on)
Switch 1 (195 turn on)


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Old 12-15-2009, 10:02 AM
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Here's a thread that might help you out: 2 speed cooling fan switch

He's using an OEM switch from some type of Volkswagen that can handle 2 different fans/temps. It looks like one of the configurations will get you close to your temp requirements, but I don't know which model of VW to look at for the switch.
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Old 12-15-2009, 12:10 PM
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Dual stage temp switch

Thanx so much Brimstone.
That made my day. Exactly the info i was looking for.
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Old 12-15-2009, 12:35 PM
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I install an electric fan on 34 ford that had a 350sbc. All you have to do is go to a local auto parts store and pick a thermostat switch and install it on the intake manifold. Wire it the a radioshack 30amp automotive relay. It turn on at 180 and turn off at 175.
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