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| | | | Joined: Aug 2004 Posts: 17 Junior Member | | Junior Member Joined: Aug 2004 Posts: 17 | Pusher or puller. That is the question.
Any one know which is better for an electric cooling fan attached to the radiator.
I have a 53 GMC 5 window 1/2 ton with all the running gear from a 78 Blazer. The 400 small block is a great motor but Ive been having problems with keeping her from heating up when running at an Idle on a warm day. I've got a good , large 4 core rad, custom made shroud and have tried a variaty of fans.
I'm now junk'in the clutch fan and going electric.
Any info on the best way to go? | | | | | Joined: May 2003 Posts: 77 Member | | Member Joined: May 2003 Posts: 77 | A good working clutch fan and a full shroud, set up properly (fan centered, depth-wise in the opening of the shroud and within 1/2" diameter of the opening), will out perform any electric fan, as far as cooling! If you "got to have" an electric, a puller behind the radiator is better (nothing blocking air travel through the radiator)!
Just trying to avoid the potholes on the road of life!
49 Chevy COE
55 Chevy pickup
+ way too many other project vehicles!
| | | | | Joined: Aug 2004 Posts: 17 Junior Member | | Junior Member Joined: Aug 2004 Posts: 17 | Thanks for the advice. That makes sense so a puller it will be. I've heard good and bad about both electric and clutch fans. I've heard alot about the Ford Taurus Two speed fan. I'm a little ashamed at the thought of putting ford parts on my truck though. | | | | | Joined: Oct 2003 Posts: 445 Shop Shark | | Shop Shark Joined: Oct 2003 Posts: 445 | the price is right,no one will know the difference.as long as it gets the job.You can get a dial in thermostat switch for the fan also
dan-pa
| | | | | Joined: Jun 2004 Posts: 8,597 Riding in the Passing Lane | | Riding in the Passing Lane Joined: Jun 2004 Posts: 8,597 | Summit has a fan kit pulls 2800 CFM. Has good mounting brackets & adjustable therm. I used one on my 56 w/350. Worked real good. No way would I hang one on the radiator core with plastic rods. 
They say money can't buy happiness. It can buy old Chevy trucks though. Same thing. 1972 Chevy c10 Cheyenne SuperIn the Gallery Forum | | | | | Joined: Mar 2004 Posts: 3,068 'Bolter | | 'Bolter Joined: Mar 2004 Posts: 3,068 | I don't know if you can keep that 400 cool with the best cooling system you can buy, they're prone to running hot from the factory. Then you stick one into a tighter area than they are used to and can't disapate the heat from around it. You may need to run a performance aluminum radiator and a puller fan with a low temp thermostat to keep it under control. Just one guy's opinion,
Scott | | | | | Joined: May 2003 Posts: 1,271 Shop Shark | | Shop Shark Joined: May 2003 Posts: 1,271 | Definitely a puller. Placed at the TOP of the radiator (heat rises) for best cooling. I put a 16 inch electric fan on my rad w/350 sbc; headers; mild cam; Edelbrock 4bbl carb ... ran double relays and a fusible link (NOT a circuit breaker) ... and my voltage gauge is very happy; she stays nice and cool, too. Walker Z-Cool Radiator Install[/b] [b]Wiring Your Fan w/Double Relays[/b] [b]About Fusible Links
~~ Alan Horvath 1954 Chevy PickupSinging his praises in thePassing Lane | | | | | Joined: Oct 2003 Posts: 445 Shop Shark | | Shop Shark Joined: Oct 2003 Posts: 445 | The 350 runs best around 200deg.I would be safe to say 225deg.Mine has been there++.The new car therostat opens at 260deg.A old friend told me,Don't worry about the rad,ya can't soilder under water.He was a mechanic at Indy 500.in his younger days.
dan-pa
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