390FE NEED PULLEYS
Hotshot
Joined: Mar 2013
Posts: 14,255
Likes: 199
From: Phoenix, Az.
Thanks for the technical info. Robert made me a deal on all the crank pulleys he had so I should be able to make something work. Maybe a pulley set will present itself later but at least I can get the truck on the road in the meantime. I'll probably want power steering but I doubt I'll add AC. As always you guys are awesome. Thanks for all the help and knowledge. I may actually learn enough to contribute to the forum in the future!
A personal experience here, an opinion there. 
Thread Starter
|
Cross-Country
Joined: Jan 2015
Posts: 95
Likes: 0
Orich, heres a picture of whats running on my '72 f250 2wd. The water pump pulley is a double about 7 1/4" and a fixed fan. I haven't had a problem with over heating but I haven't been in stop and go traffic in the summer with this truck much.The crank pulley is a triple with an added AC pulley. The crank pulleys are actually smaller than the water pump pulley...under 7". You have some pulleys that looks like this?
Lead Driver
Joined: Aug 2003
Posts: 7,592
Likes: 10
From: **** hole San Jose ca.
As with a fixed fan you can get by with a 7.1/4" W/P size pulley. Where as with if you where using a clutch fan the W/P needs to spin a little faster for any city driving.
And in most cases, I only see one belt for the alternator when a clutch fan is used.
Some guys when switching to a clutch fan don't realize they need to use the smaller pulley and wonder why there having some over heating in stop & go driving. this was my point.
Orich
And in most cases, I only see one belt for the alternator when a clutch fan is used.
Some guys when switching to a clutch fan don't realize they need to use the smaller pulley and wonder why there having some over heating in stop & go driving. this was my point.
Orich
Senior User
Joined: Dec 2015
Posts: 143
Likes: 0
Hey I'm not sure if you got everything or what your missing but let me know I have 2 sets right now I believe one was from a 360 and one from a 390 but I believe both work for either...and which ever ones I don't use on my rebuild your more than welcome to just let me know!
Thread Starter
|
Cross-Country
Joined: Jan 2015
Posts: 95
Likes: 0
As with a fixed fan you can get by with a 7.1/4" W/P size pulley. Where as with if you where using a clutch fan the W/P needs to spin a little faster for any city driving.
And in most cases, I only see one belt for the alternator when a clutch fan is used.
Some guys when switching to a clutch fan don't realize they need to use the smaller pulley and wonder why there having some over heating in stop & go driving. this was my point.
Orich
And in most cases, I only see one belt for the alternator when a clutch fan is used.
Some guys when switching to a clutch fan don't realize they need to use the smaller pulley and wonder why there having some over heating in stop & go driving. this was my point.
Orich
Thread Starter
|
Cross-Country
Joined: Jan 2015
Posts: 95
Likes: 0
Do you think I would have a problem going to the smaller 6.5/8" pulley and keeping the fixed fan? Its a factory fan and doubt its going to flex much.
Lead Driver
Joined: Aug 2003
Posts: 7,592
Likes: 10
From: **** hole San Jose ca.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
3 Best / 3 Worst Parts of Modern Ford Ownership
Brett Foote
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches
Pouria Savadkouei
Every 2026 Ford Engine Explained
Brett Foote
10 Ugly Ford Trucks That We Still Kinda Love
Joe Kucinski
10 Things Every Truck Owner NEEDS (2026 Edition)
Michael S. Palmer
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
Thread Starter
|
Cross-Country
Joined: Jan 2015
Posts: 95
Likes: 0
Ah, didn't know that would help mpg. I'm pretty sure I have a clutch fan from a 460 I'm slowing working on. Maybe I should change out for the fixed fan and go with your smaller water pump pulley. Did you have a chance to check what size the other crank pulley you have is?
Lead Driver
Joined: Aug 2003
Posts: 7,592
Likes: 10
From: **** hole San Jose ca.
Ah, didn't know that would help mpg. I'm pretty sure I have a clutch fan from a 460 I'm slowing working on. Maybe I should change out for the fixed fan and go with your smaller water pump pulley. Did you have a chance to check what size the other crank pulley you have is?
And the w/p pulley, I just removed from my motor 2belts 6.5/8''
And have another 2belt pulley that, I got off and engine from the junk yard with a clutch fan that is 5.7/8" that I got to flip.
Orich
Posting Guru
Joined: Oct 2006
Posts: 1,360
Likes: 5
From: nunya
I would be interested in a 3 groove lower pulley for a 3 bolt harmonic balancer if anyone has one..I have a dual groove W/P and ALT pulleys now.
How about using a GM Saginaw pump? Will I be able to us the 3 groove crank pulley?
And IM SORRY for the hijack!
How about using a GM Saginaw pump? Will I be able to us the 3 groove crank pulley?
And IM SORRY for the hijack!
Lead Driver
Joined: Aug 2003
Posts: 7,592
Likes: 10
From: **** hole San Jose ca.
I've still have a 3v belt crank pulley. The two inner v belt grooves fit the alternator & water pump 3/8" belt with the pulley OD of 6.3/4"
The one outer v belt groove takes a 7/16" or a 1/2" width belt, the Pulley has a OD of 6.0"
And a water pump two belt 3/8" pulley with a OD is 5"3/4" pulley these smaller ones are needed when converting to a clutch fan as the water pump needs to spin a little faster in slow city driving.
If interested shoot me a email.
email me at orich1@hotmail.com
The one outer v belt groove takes a 7/16" or a 1/2" width belt, the Pulley has a OD of 6.0"
And a water pump two belt 3/8" pulley with a OD is 5"3/4" pulley these smaller ones are needed when converting to a clutch fan as the water pump needs to spin a little faster in slow city driving.
If interested shoot me a email.
email me at orich1@hotmail.com
Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
Likes: 787
From: Simi Valley, CA
The harmonic balancer contains a single sheave pulley. FoMoCo offered single, double and triple sheave outer accessory pulleys that bolt to the balancer to add P/S and/or A/C
Thread
Thread Starter
Forum
Replies
Last Post
pit_of_pity
FE & FT Big Block V8 (332, 352, 360, 390, 406, 410, 427, 428)
5
Apr 16, 2010 12:16 PM
mmuenchow
FE & FT Big Block V8 (332, 352, 360, 390, 406, 410, 427, 428)
13
Nov 10, 2006 02:34 PM
'88f150w/390bb
FE & FT Big Block V8 (332, 352, 360, 390, 406, 410, 427, 428)
4
Feb 26, 2005 04:41 PM
jnsnwt
FE & FT Big Block V8 (332, 352, 360, 390, 406, 410, 427, 428)
3
Apr 7, 2004 01:52 PM