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08-21-2011, 04:22 PM
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#1 |
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Registered User
Join Date: Aug 2002
Location: Muskogee, Oklahoma
Posts: 2,914
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Ram horns I.D.
Can anyone identify wether or not I have a pair of matching ram horns? Part numbers are GM 3846559 LH22 and GM 3747038 RH21. I enter these numbers in google and it sends me to corvette sites. Also, why is one tapered where the donut gasket goes and the other is not? Thanks!
 
Last edited by Gene; 08-21-2011 at 04:30 PM. |
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08-21-2011, 04:36 PM
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#2 |
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What?
Join Date: Jun 2007
Location: Southern California
Posts: 7,617
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Re: Ram horns I.D.
The passenger side is flush, because there is a thermostatic flapper valve that goes on first then the doughnut gasket to pipe.
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Chris 1968 K20 Suburban 1972 K10 LWB PU |
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08-21-2011, 04:39 PM
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#3 | |
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Senior Member
Join Date: Aug 2002
Location: Valley Center KS
Posts: 3,525
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Re: Ram horns I.D.
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08-21-2011, 04:51 PM
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#4 |
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What?
Join Date: Jun 2007
Location: Southern California
Posts: 7,617
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Re: Ram horns I.D.
I suppose one could remove the valve, but then have to chamfer the the inside so that the doughnut gasket could get a proper seal.
In the past, I would just take an old valve and knock out the butterfly. Since a lot of the times the valve gets frozen into position anyways. Those valves cost about 65 bones too...
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Chris 1968 K20 Suburban 1972 K10 LWB PU |
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08-21-2011, 07:10 PM
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#5 |
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Registered User
Join Date: Aug 2002
Location: Muskogee, Oklahoma
Posts: 2,914
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Re: Ram horns I.D.
Ok. tried to install these manifolds and the drivers side has a threaded bracket that hits my alternator bracket? Should I switch sides?
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08-21-2011, 07:52 PM
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#6 |
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What?
Join Date: Jun 2007
Location: Southern California
Posts: 7,617
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Re: Ram horns I.D.
The earlier style had the alternator mounted to the exhaust manifold on the driver side.
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Chris 1968 K20 Suburban 1972 K10 LWB PU |
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08-21-2011, 09:39 PM
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#7 |
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Registered User
Join Date: Aug 2002
Location: Muskogee, Oklahoma
Posts: 2,914
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Re: Ram horns I.D.
Cool thanks. I'll have to mount mine like that then.
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08-22-2011, 03:47 PM
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#8 | |
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Registered User
Join Date: Aug 2002
Location: Muskogee, Oklahoma
Posts: 2,914
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Re: Ram horns I.D.
Quote:
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08-22-2011, 09:21 PM
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#9 |
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Scrapper 1
Join Date: Jan 2007
Location: Riverside Calif
Posts: 1,649
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Re: Ram horns I.D.
I'v seen that Bracket on the 1967--70 trucks But on my 1964--72 We have a Bracket that are plentiful on Ebay and most all parts catalogs that where really simple to use But the 1968--72 trucks went away from the exhaust mounted alternator
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08-22-2011, 09:25 PM
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#10 |
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Scrapper 1
Join Date: Jan 2007
Location: Riverside Calif
Posts: 1,649
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Re: Ram horns I.D.
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