Clearance issues with 7 blade "hemi" clutch fan and my radiator. Need another fan choice.

[440 4 speed]

Just wondering who would drive a 750hp 1969 Coronet on the street? Doubling the hp doesn’t make sense, especially if you go on long road trips.
I do not have any idea what changes are needed to the cooling system when a lot of modifications are done.
I can only tell you what has worked for us.

 

[RJRENTON]

you evidently have been living under a rock...

A cryptic explanation???? WHAT ROCK? Still no calcs or substantial info....just verbiage......punt....
BOB RENTON

 

[RJRENTON]

View attachment 1862298

Captan Jean-Luc Picard was muttering to himself, the famous or infamous expression: MAIRD.......a French expression for __________ translate yourself.........a phrase I've used myself....frequently........
BOB RENTON

 

[Geoff 2]

To answer the original question.

GM fan clutch mounting is the same as Chrys. There might be a 'short' clutch that will do the job.

 

[not so famous bob]

No one has answered my question in post 51.

What did your R/T have for a rad? Did you have antifreeze in it?
Let’s try to make it simpler 275x15 on a 8 inch rim. 3:23 gears. Factory 4 speed or auto. No a/c. Driving at 2600 rpm.

bone stock from the factory , was young and didn't have the knowledge to change anything , OR THE $ , after buying the car !!-----LOL

 

[not so famous bob]

Captan Jean-Luc Picard was muttering to himself, the famous or infamous expression: MAIRD.......a French expression for __________ translate yourself.........a phrase I've used myself....frequently........
BOB RENTON

myself ,I couldn't stand Piccard , he used to spout off things that were wrong with America , and was dam Frenchman !!
Never got into the second or third startrek shows either ...

 

[not so famous bob]

It's obvious that you cannot do the required calculations....
.perhaps you don't understand what's involved.... given dentical circumstances and conditions nothing will.be different....explain your conditions....and numbers ..Your tirn....
BOB RENTON



.

Get real dude , I`ve had 100% agree with me in my statement ... except you ! Life experiance is a great teacher , u must not have any , DONE WITH THIS !

 

[1KoolBee]

Or just do what I've been preaching. Stock 26" radiator with stock fan clutch. It's affordable and it works.

That’s what my ‘68 Bee came with. Works great, no clearance or cooling issues.

 

[not so famous bob]

That’s what my ‘68 Bee came with. Works great, no clearance or cooling issues.

generally a lot cooler up there than here , 383`s didn't have as big problem here as a 440 either .. had both ..

 

[1KoolBee]

generally a lot cooler up there than here , 383`s didn't have as big problem here as a 440 either .. had both ..

My Bee has factory air and I lived in the Mojave desert for 30+ years where it was 100+ every day from mid June to end of September. The factory system with 3 row radiator, 3” pitch fan, and oem fan clutch got the job done. It amazes me how many guys try to “reengineer “ these cooling systems with aftermarket crap and then end up with all sorts of cooling issues. BTW it’s been in the 90’s here lately. As for the 440 argument, my dad had both a ‘70 and a ‘73 imperial in the same desert town. Both 440’s with every option you could think of. Weighed 200lbs more than 3 Honda civics of the day. Factory 3 row radiators, fan clutch , and 7 blade fans. Never overheated even in 100+ weather.

 

[1KoolBee]

To answer the original question.

GM fan clutch mounting is the same as Chrys. There might be a 'short' clutch that will do the job.

I have run a “re-drilled” GM Eaton thermostatic fan clutch in my 383 until I could find a NOS mopar one. Length was same, but re-drilling was a PITA. I think it was off a Buick. Looked identical to the mopar one except for bolt pattern.