E-Bodies.org Cuda Challenger Forum

Technical Shop => Engine, Transmission & Rear End => Topic started by: Yellow71Cuda on May 22, 2017, 06:37:25 PM

Title: 71 Cuda 340 (with A/C) - What Fan? Clutch or No Clutch?
Post by: Yellow71Cuda on May 22, 2017, 06:37:25 PM
 :notsure:  When I bought my car, most appeared original, and it has a non-clutch fan.  Is this correct for a 71 (late '70 build) 340 Cuda with factory A/C?  :thinking:
Title: Re: 71 Cuda 340 (with A/C) - What Fan? Clutch or No Clutch?
Post by: anlauto on May 22, 2017, 06:41:55 PM
AC car ? No way. :alan2cents:
Title: Re: 71 Cuda 340 (with A/C) - What Fan? Clutch or No Clutch?
Post by: Yellow71Cuda on May 22, 2017, 06:49:06 PM
Quote from: anlauto on May 22, 2017, 06:41:55 PM
AC car ? No way. :alan2cents:

My gut tells me the same thing Alan, but every fan/clutch combo I see advertised says, "Hemi, Big Block, and 340 Without A/C".   :help:

I feel kinda left out.  :(   
Title: Re: 71 Cuda 340 (with A/C) - What Fan? Clutch or No Clutch?
Post by: Yellow71Cuda on May 22, 2017, 07:18:14 PM
Okay...Found this...
Title: Re: 71 Cuda 340 (with A/C) - What Fan? Clutch or No Clutch?
Post by: Yellow71Cuda on May 22, 2017, 07:20:06 PM
I did have this in a parts stash...Can't find any numbers though... :notsure:
Title: Re: 71 Cuda 340 (with A/C) - What Fan? Clutch or No Clutch?
Post by: Cuda Cody on May 22, 2017, 07:29:36 PM
7 blade with AC  :yes: 

Does that fan have a part number stamped on it?
Title: Re: 71 Cuda 340 (with A/C) - What Fan? Clutch or No Clutch?
Post by: Yellow71Cuda on May 22, 2017, 07:44:44 PM
Quote from: Cuda Cody on May 22, 2017, 07:29:36 PM
7 blade with AC  :yes: 

Does that fan have a part number stamped on it?

Oddly enough Cody, I see no part numbers.  Maybe if I clean it up, I can find some.
Title: Re: 71 Cuda 340 (with A/C) - What Fan? Clutch or No Clutch?
Post by: Shoooter on May 22, 2017, 07:55:54 PM
Thanks great info. Now I need to find one lol
Title: Re: 71 Cuda 340 (with A/C) - What Fan? Clutch or No Clutch?
Post by: 71GranCoupe on May 22, 2017, 07:56:46 PM
Some are metal stamped and some just ink stamped. 216's have been seen both ways.  :alan2cents:
Title: Re: 71 Cuda 340 (with A/C) - What Fan? Clutch or No Clutch?
Post by: 1 Wild R/T on May 22, 2017, 07:57:17 PM
Thats a 216....
Title: Re: 71 Cuda 340 (with A/C) - What Fan? Clutch or No Clutch?
Post by: Yellow71Cuda on May 22, 2017, 08:31:37 PM
Quote from: 1 Wild R/T on May 22, 2017, 07:57:17 PM
Thats a 216....

So...blast it, paint it, and bolt it on? 
Title: Re: 71 Cuda 340 (with A/C) - What Fan? Clutch or No Clutch?
Post by: 1 Wild R/T on May 22, 2017, 09:08:37 PM
Quote from: Yellow71Cuda on May 22, 2017, 08:31:37 PM
Quote from: 1 Wild R/T on May 22, 2017, 07:57:17 PM
Thats a 216....

So...blast it, paint it, and bolt it on?

Yup, How's the clutch?
Title: Re: 71 Cuda 340 (with A/C) - What Fan? Clutch or No Clutch?
Post by: Yellow71Cuda on May 22, 2017, 09:30:25 PM
Quote from: 1 Wild R/T on May 22, 2017, 09:08:37 PM
Quote from: Yellow71Cuda on May 22, 2017, 08:31:37 PM
Quote from: 1 Wild R/T on May 22, 2017, 07:57:17 PM
Thats a 216....

So...blast it, paint it, and bolt it on?

Yup, How's the clutch?

Turns smoothly with resistance.
Title: Re: 71 Cuda 340 (with A/C) - What Fan? Clutch or No Clutch?
Post by: 1 Wild R/T on May 22, 2017, 09:49:51 PM
Sounds promising...
Title: Re: 71 Cuda 340 (with A/C) - What Fan? Clutch or No Clutch?
Post by: ksierens on March 14, 2019, 11:23:43 AM
Ok, this is an older post, but I will ask anyways.  My 1970 Challenger has a 440 with a manual trans.  Would you guys recommend a solid 7 blade fan or one with a clutch?
Title: Re: 71 Cuda 340 (with A/C) - What Fan? Clutch or No Clutch?
Post by: Chryco Psycho on March 14, 2019, 01:27:59 PM
Always a clutch fan , the correct 7 blade may be difficult to find Flex-A-lite as 18 " 6 blades available that work well as an option
Title: Re: 71 Cuda 340 (with A/C) - What Fan? Clutch or No Clutch?
Post by: ksierens on March 15, 2019, 06:12:53 AM
Thanks, guess I could use the Flex-A-Lite 6718 fan. I had also seen posts about needing to use a low profile clutch. The engine is not in the car yet, do you think I should order the one listed for my car, or get a lower profile one?  Also, they list a standard (Hayden 2706) or heavy duty clutch (Hayden 2747), any opinions? Oh and then there's the thermal vs non-thermal question! ;)
Title: Re: 71 Cuda 340 (with A/C) - What Fan? Clutch or No Clutch?
Post by: Chryco Psycho on March 15, 2019, 07:21:54 AM
I would use a thermal Hd  , I have used the shorter clutch on 60s B bodies that did not use a clutch from the factory but std ones on E bodies , either will work as there is only about 1" difference
Title: Re: 71 Cuda 340 (with A/C) - What Fan? Clutch or No Clutch?
Post by: dodj on March 16, 2019, 03:30:39 AM
Back in the day Mopar Performance claimed these moved more air than the seven blade. The offset of the blades made for more efficient air movement.
I know when I installed one on my 440 in place of a symetrical fan, I no longer heated up at idle.  :alan2cents:
Title: Re: 71 Cuda 340 (with A/C) - What Fan? Clutch or No Clutch?
Post by: Chryco Psycho on March 16, 2019, 04:27:04 AM
Are the 5 blade still available though ??
Title: Re: 71 Cuda 340 (with A/C) - What Fan? Clutch or No Clutch?
Post by: dodj on March 16, 2019, 06:07:51 AM
 :dunno: I dunno?
Title: Re: 71 Cuda 340 (with A/C) - What Fan? Clutch or No Clutch?
Post by: ksierens on March 16, 2019, 08:23:57 AM
I did not see them, I ended up ordering a 6 blade flex-a-lite

Sent from my SAMSUNG-SM-G930A using Tapatalk

Title: Re: 71 Cuda 340 (with A/C) - What Fan? Clutch or No Clutch?
Post by: Chryco Psycho on March 16, 2019, 08:26:08 AM
MIght be as hard to find a 5 blade now as the original 7 blade , the 6 blade Flex-a-lite is a good fan too  :bigthumb: