08-21-2011, 04:22 PM | #1 |
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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. |
08-21-2011, 04:36 PM | #2 |
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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 |
08-21-2011, 04:39 PM | #3 |
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Re: Ram horns I.D.
This just dawned on me: if you remove that flapper valve, and just use a donut gasket, will you have a horrible exhaust leak. I removed the flapper valve when I put my new exhaust on, and its pretty loud.
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08-21-2011, 04:51 PM | #4 |
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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 |
08-21-2011, 07:10 PM | #5 |
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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 | #6 |
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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 |
08-21-2011, 09:39 PM | #7 |
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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 | #8 | |
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Re: Ram horns I.D.
Quote:
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08-22-2011, 09:21 PM | #9 |
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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 | #10 |
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Re: Ram horns I.D.
More photos
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