Water Pump Snout Length

[rklein383]

Just bought a Mopar Performance Viscous Fan for my 440 equipped 383-S Barracuda. It doesn't fit, hits the radiator.

Are there different lengths of snouts for water pumps on the big blocks?

I would really like to run this fan as I have been running a fixed fan for years and it is noisy and costs HP.

Thanks,
Rod

 

[BillGrissom]

I haven't heard of different water pumps for the BB & RB engines. Chevy's have short & long ones, and the Mopar SB engines have shorter cast-iron pumps and later aluminum pumps that are 1" thicker. A big block in a Barracuda (A-body) is tight, so they might have never used a viscous fan. You can get many different radiators though.

 

[mcodecuda]

I used the same one on my 440 cuda with a 3 core radiator and it just fits. It's so tight that I have to install the radiator then slide the shroud in. I put a piece of cardboard against the radiator so that it doesn't get damaged then I install the clutchfan assembly. There is probally only a 1/4 to 3/8" clearance from the radiator to the clutchfan

 

[rklein383]

Anybody else have any info on this?

 

[rklein383]

I used the same one on my 440 cuda with a 3 core radiator and it just fits. It's so tight that I have to install the radiator then slide the shroud in. I put a piece of cardboard against the radiator so that it doesn't get damaged then I install the clutchfan assembly. There is probally only a 1/4 to 3/8" clearance from the radiator to the clutchfan

I have the original radiator in mine, there is no way the fan will fit. There must be a shorter water pump snout.

 

[mopardude318]

Try a Hayden part #: 2765 it should be 2 3/4" overall ... These are from a 1990 Jag XJ6. They are a little bit shorter than the mopar performance clutch.

http://www.summitracing.com/parts/hda-2765

 

[rklein383]

Yahoo, problem solved!

Went to the junkyard and found a shorter clutch off what I belive was a 63 Chrysler.

It is shorter than the 5905704 clutch by around a half inch, still a close fit.

My MP clutch is for sale, see

http://my.ebay.com/ws/eBayISAPI.dll...MyeBayAllSelling&ssPageName=STRK:ME:LNLK:MESX

Rod

 

[69DARTS]

Try a Hayden part #: 2765 it should be 2 3/4" overall ... These are from a 1990 Jag XJ6. They are a little bit shorter than the mopar performance clutch.

http://www.summitracing.com/parts/hda-2765

its what i used works fine

 

[rklein383]

its what i used works fine

The junkyard clutch was only 10.00 bucks and seems to be in good working order.

 

[69DARTS]

The junkyard clutch was only 10.00 bucks and seems to be in good working order.

very cool