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#1 |
Registered User
![]() Join Date: Feb 2003
Location: Marshfield, MO
Posts: 355
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Ram Horns and Alt Bracket
On my 67 C10 I now have new ram horn exhaust manifolds that do not have the alternator mount built into the front edge of the left side. My old one that did have the mount broke and leaked badly at the crack.
My old bracket bolted to the water pump and the left exhaust manifold - he bottom of the alternator bolted to that. There was also a adjustment arm that went from the intake manifold to the top of the alternator. How do I set up my alternator now? I see some folks have a bracket that bolts to the front of the left head using the 2 holes there. Is that a factory part? Or after market? I have a short water pump and a 1975 (I think) 350 that was installed by the PO. My crank pulley is a 3 groove using the single add on pulley. Any suggestions, alternative mounting thoughts, or part numbers would be appreciated. |
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#2 |
Registered User
Join Date: Nov 2014
Location: Austin
Posts: 749
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Re: Ram Horns and Alt Bracket
Make your own bracket that bolts to the head and reaches the original manifold mounting point. Should be straight forward with some 1/4" steel plate and a little gusseting.
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#3 |
Registered User
![]() Join Date: Feb 2003
Location: Marshfield, MO
Posts: 355
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Re: Ram Horns and Alt Bracket
If a trip to the local junk yard does not get me a suitable bracket I will be breaking out the grinder and cut off tool
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#4 |
Registered User
Join Date: Jan 2015
Location: Junction City OR
Posts: 1,758
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Re: Ram Horns and Alt Bracket
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#5 |
Registered User
Join Date: Mar 2015
Location: st cloud mn
Posts: 163
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Re: Ram Horns and Alt Bracket
If you aren't worried about originality I would find the newer bracket. Shorter belt and easier pulley and belt alignment
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#6 |
Senior Member
![]() Join Date: Sep 2007
Location: Albuquerque NM
Posts: 7,848
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Re: Ram Horns and Alt Bracket
there was a guy on here about two weeks ago selling a set of 67 rams. i bet hed seperate
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1967custom |
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#7 |
Registered User
Join Date: Nov 2014
Location: Austin
Posts: 749
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Re: Ram Horns and Alt Bracket
Are rams horn manifolds with the alternator mounting boss specific to 1967? My 1971 has and uses the alternator mounting boss on the manifold. But, I also know the engine is not original to the truck.
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#8 |
Senior Member
![]() Join Date: Sep 2007
Location: Albuquerque NM
Posts: 7,848
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Re: Ram Horns and Alt Bracket
i think theyre on the 64-66 ones with a 283 also
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1967custom |
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#9 |
Registered User
Join Date: Nov 2014
Location: Austin
Posts: 749
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Re: Ram Horns and Alt Bracket
Aha, that makes sense. Best I can tell, the engine in my 1971 is a 283 from a mid to late 60's Malibu (230 HP). Yes, a tube spacer between a 1/4" plate and the alternator would be an easy and functional solution.
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#10 |
Registered User
Join Date: Jun 2014
Location: Glendale, Arizna
Posts: 1,642
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Re: Ram Horns and Alt Bracket
It appears from the picture that two spacers and bolts would need to go to the fabbed bracket, one on the alternator and one to support the bracket.
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#11 | |
Registered User
Join Date: Jun 2014
Location: Glendale, Arizna
Posts: 1,642
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Re: Ram Horns and Alt Bracket
Quote:
I'm thinking a flat piece of 1/4" mild steel cut in a shape to catch the cylinder head bolts and extend to the alt lower bolt axis then drill through the outer bracket through the plate, install necessary spacer and you should be good to go. But I'd for sure attempt to make a brace from the head to the rear of the alt. Or, a bracket off the front 2 exhaust manifold bolts, like maybe use some studs in the manifold and bolt a bracket to them, bend it around or weld onto it and line it up. Last edited by mechanicalman; 04-29-2015 at 07:03 PM. Reason: exhaust bolts |
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#12 |
Registered User
Join Date: Jun 2014
Location: Glendale, Arizna
Posts: 1,642
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Re: Ram Horns and Alt Bracket
Are those 041 heads? Just curious.
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#13 |
Old member
Join Date: Jan 2002
Location: Liberty, & Garden City S.C. , U.S.
Posts: 19,936
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Is this the bracket you are talking about?
If so it's a stock item. It was on my 307 and 305. Nothing bolted to the Ram Horn. ![]()
__________________
1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71 ![]() Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs. |
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#14 |
Cluster King
![]() Join Date: Nov 2012
Location: Junction City, OR
Posts: 5,263
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Re: Ram Horns and Alt Bracket
For around $45.00, you can get the correct alt bracket (upper and lower with correct bolts) for the exhaust manifolds you have now. 67-68 had the boss for the bracket made on the manifold. 69-72 had the newer style bracket (like in Andy4639's photo)
Get yourself the correct part for what you have and you will not be frustrated with having the belt out of alignment and it will look like it is suppose to look. Hope this helps, Tom
__________________
Contact me on all of your gauge cluster needs. I specialize in restoration, repair and parts sales for 67-72 Chevy and GMC trucks. email me at tbonegarris@yahoo.com I am also a dealer for Counterpart for gauge cluster parts only. Also see my facebook page, CG&C |
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#15 |
Registered User
![]() Join Date: Feb 2003
Location: Marshfield, MO
Posts: 355
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Re: Ram Horns and Alt Bracket
Andy - that looks like what I need. Thanks for the pics. Is yours a short or long water pump? It is looking like time to go to Pick n Pull
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#16 | |
Old member
Join Date: Jan 2002
Location: Liberty, & Garden City S.C. , U.S.
Posts: 19,936
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![]() Quote:
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__________________
1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71 ![]() Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs. |
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#17 |
Registered User
![]() Join Date: Feb 2003
Location: Marshfield, MO
Posts: 355
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Re: Ram Horns and Alt Bracket
I do not think so. I took the valve cover off to look, I thought the number was either 399882 or 398882 - reading a casting number always leaves me wondering
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#18 |
Registered User
Join Date: Feb 2011
Location: Modesto, CA
Posts: 2,188
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Re: Ram Horns and Alt Bracket
Nice to see you got it figured out!
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#19 |
Senior Member
![]() Join Date: Nov 2001
Location: Rapid City, SD
Posts: 2,281
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Re: Ram Horns and Alt Bracket
I have an extra of the bracket pictured in #8
PM me if you don't find one, I will think about a price.
__________________
My Trucks: 1967 Chevrolet Short Wide Box 327 TH350 9" w/3.90 gears paint will be White - Current Project 1967 Chevrolet Custom LWB 283 TH400 3.73 Posi, no-AC, no-PS, no-PB, bench-seat, small-window - mostly orig driver 1967 Chevrolet CST LWB originally a 327 TH400 3.73 Posi AC PS PB, had Buddy Buckets, Small Window - parts truck 1967 Chevrolet CST LWB, 283 MT 3.73 had Buddy Buckets, Panoramic Window - parts truck 2001 Chevrolet 3500 2WD Crew Cab Dually 8.1L Allison White |
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#20 |
Registered User
![]() Join Date: Feb 2003
Location: Marshfield, MO
Posts: 355
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Re: Ram Horns and Alt Bracket
Life got in the way the past couple days...
I like the fabbed bracket idea. I have sent a PM about buying the brackets, but it might be a cool exercise to play with some plate this weekend and see what I can come up with. Worst case, I goof up $5 of metal and still have the brackets. |
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#21 | |
Registered User
Join Date: Jun 2014
Location: Glendale, Arizna
Posts: 1,642
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Re: Ram Horns and Alt Bracket
Quote:
I've always ran a support rod from the back of the alternator to a stud on the ex manifold to stop it from vibrating, it always did that regardless what alternator or engine I had on there. I have headers now and the bracket goes to the a/c boss on the intake instead but easier to go exhaust stud. I used metal conduit tube, smashed and bent the ends to the right length and angles then fit it up and drilled the holes. It's enough to dampen the vibration and belt oscillations. |
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#22 |
Registered User
![]() Join Date: Feb 2003
Location: Marshfield, MO
Posts: 355
|
Re: Ram Horns and Alt Bracket
I purchased the correct bracket from a fellow board member DLTruck1973. It is the same bracket shown in post #8 by Andy4639. Fits and works perfectly (quick shipping too!). For future searchers the part number is: 3951357. Now for belts and PS pump pulley...
Thanks everybody! |
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