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Old 07-10-2013, 06:42 AM
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350 SB, thermo housing - "O" ring?

350 SB, I need a thermostat housing that has a straight up hose connection. The original has a gasket, I'm finding plenty that have an "O" ring. Are they interchangable, or do I need a gasket type?

Thanks.

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Old 07-10-2013, 06:52 AM
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Quote:
Originally Posted by Mitchman View Post
350 SB, I need a thermostat housing that has a straight up hose connection. The original has a gasket, I'm finding plenty that have an "O" ring. Are they interchangable, or do I need a gasket type?

Thanks.
yes you can use the o ring type
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Old 07-10-2013, 07:01 AM
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yes you can use the o ring type
Thank you.
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Old 07-10-2013, 09:19 AM
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There are water necks on the market today that aren't worth a crap. What you want to avoid is any plated pot metal necks, O-ring or not. They will over time corrode and lose their seal. This often requires using a thick paper gasket and RTV sealant to get them to stop leaking until a decent replacement can be found.

Aluminum is better than pot metal but I still prefer them to be unplated. I have even had good results from using OEM parts even if they sometimes look 'industrial', but finding a 180 degree oem neck might not happen.
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Old 07-10-2013, 10:53 AM
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There are water necks on the market today that aren't worth a crap. What you want to avoid is any plated pot metal necks, O-ring or not. They will over time corrode and lose their seal. This often requires using a thick paper gasket and RTV sealant to get them to stop leaking until a decent replacement can be found.

Aluminum is better than pot metal but I still prefer them to be unplated. I have even had good results from using OEM parts even if they sometimes look 'industrial', but finding a 180 degree oem neck might not happen.
Yea. Been there, done that with some mid '30s car restorations. In the 70's and 80's a lot of junk flooded in.

I'm looking for iron. The real stuff.
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Old 07-10-2013, 11:55 AM
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Mine is billet aluminum, bought at one of the NSRA shows, but don't remember from who. It is an 'O' ring type. I have it mounted above an extension I bought from Vintage Air that has a port on it for the heater hose. The extension can be rotated to point the port in any of 4 positions. The extension requires a paper-type gasket (and sealer).
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Old 07-10-2013, 12:29 PM
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I also have one of the billet aluminum straight up neck ones on my 34 that has an o ring. I bought it at a swap meet so I have no idea of its origination. I also do not like the plated ones they do not last.

Vince
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Old 07-10-2013, 12:51 PM
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I have it mounted above an extension I bought from Vintage Air that has a port on it for the heater hose. The extension can be rotated to point the port in any of 4 positions. The extension requires a paper-type gasket (and sealer).
Cool. I'll give it a look. Kill 2 birds easy as pie.
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Old 07-10-2013, 01:04 PM
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Found out mine is from Billet Specialties. I do not know about your particular installation but on mine I could not use a T-stat housing with an integral heater hose fitting on it (not enough room). Check my photo gallery of a pic of my engine with it installed.


Vince
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Old 07-10-2013, 08:28 PM
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Here is the extension piece I used.
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Old 07-11-2013, 12:09 AM
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Here is the extension piece I used.
Vintage Air part number. Thanks. At least one of the connections in the manifold that I should be able to tap is blocked by the A/C bracket.
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