Rad fan ??? and HEI ??? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

72gmcshorty · 10-30-2002, 06:52 PM

I have a new 4 core rad and a BB motor. I have no fan shroud and was wondering what I should do for a fan? Should I use a regular stock 70's style 4 blade metal fan or a clutch style fan and find a shroud or what else? I don't want to spend the money on an electric fan setup unless I can't find a shroud.

HEI question- What size wiring should I use to go from the distributor to the fuse panel?

**68 Stepside** · 10-30-2002, 07:26 PM

As far as the BB/fan shroud combo, I can't help.

For the HEI, I used 10 ga. Most people will tell you this is overkill, but it's better to have a wire that's larger than suggested, than to have a wire that is too small and gets too hot. From what I have heard, 12 ga. is sufficient.

Good luck,

TJ

crazy longhorn · 10-30-2002, 09:01 PM

I 2nd that, i also have a 10 guage wire to my HEI. If you are running an engine driven fan, a shroud is a needed item. I prefer a flex fan over the clutch fans, & have run a flex a lite plastic fan with good luck on anything from a 327 chev to a 455 Olds. Do be careful not to buzz the throttle while standing over the engine. Good luck......crazy AL

wbmorris87 · 10-30-2002, 11:06 PM

Best Electric Fan Set up is a 1992 Furd Escort. They are 2 speed, and by far move more air than any other. I use these in my stock car. A 4 blade fan works well to though, I use one of these and a shroud out of a Nova for my wifes stock car. I am putting the electric fan setup on my 69 4X4 Conversion when the time comes.(in about 2 months god willing) A lot less noisy.

Longhorn Man · 10-31-2002, 12:28 AM

I have a clutch fan on my small block with no shroud...only an inline finger protector. It gets about 10 degrees warmer in traffic than the T-stat's rating.
Try it while you look for a shroud. It's getting cold out now anyways. Just make sure your temp guage works, and you'll be fine.

neonlarry · 10-31-2002, 02:31 PM

I'm interested in using the ford electric fan. Does anyone have any pictures of one installed, and information about the wiring?

10-30-2002, 06:52 PM	#1
72gmcshorty Registered User Join Date: Jul 2001 Location: North Delta, British Columbia Posts: 1,344	Rad fan ??? and HEI ??? I have a new 4 core rad and a BB motor. I have no fan shroud and was wondering what I should do for a fan? Should I use a regular stock 70's style 4 blade metal fan or a clutch style fan and find a shroud or what else? I don't want to spend the money on an electric fan setup unless I can't find a shroud. HEI question- What size wiring should I use to go from the distributor to the fuse panel? __________________ 1992 Gmc 2wd 1972 Chevy Blazer 2wd

10-30-2002, 07:26 PM	#2
68 Stepside huh? Join Date: May 2000 Location: Washington, Illinois Posts: 5,692	As far as the BB/fan shroud combo, I can't help. For the HEI, I used 10 ga. Most people will tell you this is overkill, but it's better to have a wire that's larger than suggested, than to have a wire that is too small and gets too hot. From what I have heard, 12 ga. is sufficient. Good luck, TJ __________________ Someday when I'm lonely, Wishing you weren't so far away, Then I will remember Things we said today. RIP El Jay

10-31-2002, 02:31 PM	#6
neonlarry Registered User Join Date: Feb 2002 Location: Vacaville, CA Posts: 2,746	I'm interested in using the ford electric fan. Does anyone have any pictures of one installed, and information about the wiring? __________________ 70 C/10 Light Red 350/TH350, HEI, Duals w/40 series Flows, 91 seat, LED taillights 99 Pontiac S/C GTP, SLP Ram Air hood, GMPP Konis & springs 95 Neon ACR, MP PCM, AFX UDP, 3.0 CAI

10-30-2002, 09:01 PM	#3
crazy longhorn Fabricate till you "puke" Join Date: Jun 2002 Location: Ill Posts: 9,403	I 2nd that, i also have a 10 guage wire to my HEI. If you are running an engine driven fan, a shroud is a needed item. I prefer a flex fan over the clutch fans, & have run a flex a lite plastic fan with good luck on anything from a 327 chev to a 455 Olds. Do be careful not to buzz the throttle while standing over the engine. Good luck......crazy AL

10-30-2002, 11:06 PM	#4
wbmorris87 Registered User Join Date: Apr 2001 Location: Fallon, NV Posts: 24	Best Electric Fan Set up is a 1992 Furd Escort. They are 2 speed, and by far move more air than any other. I use these in my stock car. A 4 blade fan works well to though, I use one of these and a shroud out of a Nova for my wifes stock car. I am putting the electric fan setup on my 69 4X4 Conversion when the time comes.(in about 2 months god willing) A lot less noisy.

10-31-2002, 12:28 AM	#5
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,693	I have a clutch fan on my small block with no shroud...only an inline finger protector. It gets about 10 degrees warmer in traffic than the T-stat's rating. Try it while you look for a shroud. It's getting cold out now anyways. Just make sure your temp guage works, and you'll be fine.



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