Hello,
Seeking an NOS aluminum thermostat housing/water neck for 1970 Oldsmobile engine. Must be exceptionally clean. I believe the correct part number 404632 and #5 in the casting. Any assistance in locating will be greatly appreciated.

 

Jim, I have a few to choose from, $30ea shipped to your door





Brett

 

Hello Brett,


Thank you kindly for your assistance. If possible, I wish to purchase the two 404632 #5 thermostat housings shown in photos. Appears to be slightly different castings. Please confirm if ok?

 

Yes, There were two different #5 castings in 70. The one that has the thicker "more bold" 5 is more rare and most often not wanted on restorations for some reason. I do not believe you are going to find one NOS. I believe there was a service bulletin on these and to replace them when they came into the service shops. I think they were discontinued in late 70 maybe? I have a pile of them but none of them are very good.

 

Hey Jim, I will have to check those out tomorrow or Saturday, we are out of power now, and I have some other priorities. If I have two (2) types of castings which would you prefer, or does it even matter as long as they match?

Eric would you have any ot that documentation you could share with me on that bulletin?


Brett

 

I was looking for it here last night and could not find it. Someone posted it a couple years ago on a thread. That is the only place I seen it and can't say I remember exactly what it says.

 

Most of these are not flat anymore on the bottom side. I just take a full sheet of 100 sandpaper on a flat surface and run the outlet over it in a circle or 8 pattern and it will flatten it right out.

 

I got a nice one if needed.....

 

I have a cast iron with out the tube it must be rare.
Gerald

 

Hello Eric,
Thank you for the insightful information on how to true up and correct if mounting surface is no longer flat.

 

You do the same on the chrome housing it will seal once sanded.
Gerald

 

Jim thanks for your patience, here are some better pic's of the two (2) #5 Water Necks I have, cannot locate any more at this time, Let me know if these will suffice.

Brett

 

Hello Brett,

Thanks, these will work. PM sent...

 

PM replied

Brett

 

I didn't know these existed. A nice cleaned up polished aluminum one would like nice on the aluminum intake.

Wish i'd seen these before I put it all back together.

 

Jensenracing77

Is this the thread you were looking for?
https://classicoldsmobile.com/forums...ct-clamps.html

Post 36

Don W

 

Very cool! I believe that is what I was remembering. Was not real clear in my memory since then.

 

Hello,


I wish to take a moment to thank everyone on this thread for assisting and helping me procure the correct aluminum housing and going beyond to provide insightful technical information. You guys are absolutely wonderful!!!