High mount 460 alternator bracket
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Elder User
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From: mid-MO
High mount 460 alternator bracket
I did a search for a high mount alternator bracket on here and did find a few things, but all were having to do with buying aftermarket brackets. I am wanting to make my own, as I have all kinds of fun toys at my fingertips (CAD Software, waterjets, mills, lathes). My question is does anyone have any measurements of bolt hole locations for the mounting the bracket? I currently have a pieced together mess and I am wanting to make a solid one piece unit. Probably would do the lower bolt hole in the head, and two holes in the waterpump unless someone has a better idea on this? Thanks,
Fleet Mechanic
Joined: Nov 2009
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I did a search for a high mount alternator bracket on here and did find a few things, but all were having to do with buying aftermarket brackets. I am wanting to make my own, as I have all kinds of fun toys at my fingertips (CAD Software, waterjets, mills, lathes). My question is does anyone have any measurements of bolt hole locations for the mounting the bracket? I currently have a pieced together mess and I am wanting to make a solid one piece unit. Probably would do the lower bolt hole in the head, and two holes in the waterpump unless someone has a better idea on this? Thanks,
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From: mid-MO
I'll be keeping an eye on this one. I, too, want a top mount for my alternator. Curious, what pulleys are you going to drive off of? I cannot get past premature single belt usage because of the 3G upgrade. This mod will at least make belt replacement or adjustment easier in my book.
Cargo Master
Joined: Jun 2014
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From: Central Florida
The EFI 460s (1988-96) use a quasi-serpentine system that Ford called "poly vee" because it was made up of two serpentine belts. According to what I've read on the 460 forum, the reason for this approach is to maintain the rotational direction and thus the proper functioning, of the water pump.
Whether this system of brackets and pulleys can be adapted to the earlier, carburated, 460s is something that I am unsure of. The EFI heads are different enough that one cannot simply replace the EFI manifold with an aftermarket carb manifold from Edelbrock, Weiand, et. al. That difference may extend to the accessory belt system.
I would be keenly interested in reading about anyone trying to use a poly vee belt system on a pre-88 460.
Whether this system of brackets and pulleys can be adapted to the earlier, carburated, 460s is something that I am unsure of. The EFI heads are different enough that one cannot simply replace the EFI manifold with an aftermarket carb manifold from Edelbrock, Weiand, et. al. That difference may extend to the accessory belt system.
I would be keenly interested in reading about anyone trying to use a poly vee belt system on a pre-88 460.
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From: mid-MO
Thanks for the input guys, but I really just want to keep my current setup and make my own custom alt bracket rather than try to use a factory bracket. I am now thinking of somehow running a dual groove pulley on the 3G alternator and keeping my v belt setup. I might have to make my oven pulley, unless someone knows of a dual belt pulley that could be used on the alt. Failing that it should be easy enough to measure, model, program, and cut the custom dual groove pulley. Just take some time.
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Cargo Master
Joined: Oct 2010
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Thanks for the input guys, but I really just want to keep my current setup and make my own custom alt bracket rather than try to use a factory bracket. I am now thinking of somehow running a dual groove pulley on the 3G alternator and keeping my v belt setup. I might have to make my oven pulley, unless someone knows of a dual belt pulley that could be used on the alt. Failing that it should be easy enough to measure, model, program, and cut the custom dual groove pulley. Just take some time.
They make dual belt pulleys for the 3G. The issue you are going to run into is the crank, and water pump pulleys. You'll need to source double belt pulleys for them that do not have the smog pump groove in the middle. It makes the spacing too wide to line up correctly with the alternators grooves.
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Fleet Mechanic
Joined: Nov 2009
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My 3G has been squealing since I installed it. I've tried cleaning pulleys and oiling the belts. I have run through belts in 6 months. That is why I would like a top mount.
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From: mid-MO
I hope this loads right on here...first time posting a pic. This is what I am working on. My first truck, only been building it for 12 years or so. lol. Latest update on the high mount alternator is I modeled the bracket, cut it on a waterjet out of .750" thick aluminum plate. Today I finally had time to mock it up on the motor. Guess what? It doesn't fit right. Some of the mounting holes were off and I think I have it figured out now. Will make modifications to model tomorrow at work and it probably wont be till after the first of the year before I can get another bracket cut. Then, I need to mock up the alt again and determine pulley offsets before cutting the dual belt pulley. On a side note, would anyone on here be interested in a bracket and pulley? If I had enough interest I might be able to talk management at work into producing some of these and selling them. I will post pics of the bracket, but the pulley is not cut yet, just modeled up.
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Elder User
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From: mid-MO
Ok, here is a pic of the alt bracket and one of the bracket with 3G alternator, so you get an idea of what it will look like mounted together. Ignore the black sharpie lines on the bracket, I thought I was going to have to trim the edges here, but won't need to. One other thing to note, is that while the bracket will mount using existing threaded holes in the head, block and water pump, I am going to have to make aluminum offset posts of different heights on a lathe in order to get the bracket to sit where I want it. Haven't measured for these yet, thought I would get a working bracket first.
Cargo Master
Joined: Jun 2014
Posts: 2,216
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From: Central Florida
Loks like you're right up there with these offerings:
FORD 429-460 C. I.SERPENTINE DRIVE KITS
Tru Trac Systems & Brackets | Billet Specialties, Inc.
It would be good to see more competitively priced options in this area.
FORD 429-460 C. I.SERPENTINE DRIVE KITS
Tru Trac Systems & Brackets | Billet Specialties, Inc.
It would be good to see more competitively priced options in this area.
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Elder User
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From: mid-MO
No, I won't weld the spacers on, although I don't see why it couldn't be done. I don't feel like it will add much value to the project I guess. It should be plenty rigid as is. I thought about an idler pulley, but wasn't sure how it would work running 2 v belts.