The primary concern would be the spacing between the water pump flange and the radiator. Any machinist worthy of the name could make an adapter to mount a fan clutch to the pump shaft, as long as there's enough room for it. Finding a direct bolt-on item would be about as likely as finding a chicken with lips! Jerry
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt! There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway Love your enemies and drive 'em nuts!
The primary concern would be the spacing between the water pump flange and the radiator. Any machinist worthy of the name could make an adapter to mount a fan clutch to the pump shaft, as long as there's enough room for it. Finding a direct bolt-on item would be about as likely as finding a chicken with lips! Jerry
Gotcha. Thanks. Ton of room in there really. I didnt think of that option. Much easier than chicken lips. Lol.
If the position of the fan blade ends up more than a couple of inches from the radiator core, it would be a good idea to fabricate a shroud that covers half the depth of the fan blades. That's the ideal position for the most efficient air flow, where the opening in the shroud is even with the midpoint of the blades. Fully enclosing the fan actually results in less airflow than letting half the blade be exposed. Jerry
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt! There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway Love your enemies and drive 'em nuts!
My '46 has had all components upgraded ie. reman steering, sway bar, suspension & springs, modern brakes (hucks are gone), radial tires etc etc etc. After all this, I went with a taller rear end gear so engine isn't screaming to keep up with traffic. Our old trucks were work horses that mostly were rode hard and put away wet, unlike passenger cars which were better maintained. Best of luck
On my ‘52 with a 235 using the water pump adaptor plate, there isn’t allot of room for a clutch drive fan as you can see in the picture. About 5/8” between the fan and the radiator.
Phil Moderator, The Engine Shop, Interiors and Project Journals
1952 Chevrolet 3100, Three on the Tree, 4:11 torque tube Updated to: ‘59 235 w/hydraulic lifters, 12v w/alternator, HEI, PCV and Power front Disc Brakes Project Journals Stovebolt Gallery Forum
Yes, on the older trucks fitting a clutch fan would probably involve relocating the radiator, similar to what has to be done when putting a GMC engine in a Chevy frame. It would require at least a couple of inches of clearance to make it work. Jerry
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt! There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway Love your enemies and drive 'em nuts!
Hey Jerry, I like your idea! Has anyone just got rid of the fixed fan and used a modern radiator with electric, thermostat controlled fan(s)? I can lower my rpms significantly with my overdrive, but eliminating the fan on the highway would be the next level!
Hey Jerry, I like your idea! Has anyone just got rid of the fixed fan and used a modern radiator with electric, thermostat controlled fan(s)? I can lower my rpms significantly with my overdrive, but eliminating the fan on the highway would be the next level!
Sure...I did that and have never been happier. I have a 3 row aluminum radiator, a short shaft water pump/pulley, a Spal 2200 cfm fan and an aluminum shroud made by Old Air Products. When the thermostat turns the fan off, it just spins in the breeze. Engine is quieter, smoother (the old fans weren't balanced), and the water pump lasts longer without all the shaking and harmonic vibration. In Dallas, summer lasts about 300 days a year, traffic is slow at best, so you need something capable of cooling very well but traveling on the highway is a different thing. Good luck.
~ Jon 1952 1/2 ton with 1959 235 | T5 with 3.07 rear end
I'm partial to engine driven fans, but I also like flip phones! The KISS principle applies to both situations. If electric fans were "all that and a bag of chips", why didn't my father's B-17 have electric motors driving the props instead of 1200 HP Wright Cyclone radial engines? A thermostatic fan clutch combines the best of both worlds - - - -lots of horsepower to run the fan when the engine needs it, and quiet operation on the highway when the fan isn't necessary. Jerry
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt! There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway Love your enemies and drive 'em nuts!
Yea sounds like u nailed it on da head, "best of both worlds". Ill be looking in to it alitta harder on my 66/63 chassis. If i get it to come together, ill post my findings.
