Questions on Choke Housing/Gasket

What finish does the choke housing have on a 70 455?

Also, a source for the gasket that goes between the stove and the manifold.

 

Thanks - how about the gasket for a 72 455? It is a 72 motor, I just wanted it to look like a 70. I did not realize they made a change to the design!

 

Thanks!

 

I have two of those "chimney gaskets" that i will sell one to a customer. I will list them in "for sale" section.

 

Thanks Gerry, I will take one.

 

Choke housing were gold as mentioned. I say it’s imperative to use a heat resistant gasket on 71-72 style intake. RTV is a joke and will blow out in five minutes. That’s exhaust gas!!! It can come into the interior and kill you!!! Check Cars listings. Someone was making those gaskets. There is a cup that needs to go in first under the choke housing. Original there was an asbestos gasket. I had an NOS cup with asbestos gasket in place years ago.

 

Note that the cup/stove is stainless. Bolts and cover are mild steel.

 

As rusty as the cups are when I take them off not sure it was stainless? NOS cup I had was plated zinc I would say.

 

Interesting - on this 72 Riv motor the cup is non-magnetic. I assume it is stainless.

 

Could be? I scuba dive and I have seen stainless spoons and forks on the bottom of the ocean rusted.

 

The NOS cup I had wasn’t shiny like stainless

 

I’m wondering if cup is aluminized like good exhaust systems? Not sure if those are magnetic?

 

stainleess steel comes in about 4 different versions,it has to do with the balance of steel,nickel and chromium that makes up the stainless.400 alloy will rust after about 5 yrs...304 takes longer....and 316L will last for years...there another one after that but i dont have that much info on it.

 

I have a local place called Tampa Rubber and Gasket Co. that carries a heat, fuel and oil resistant gasket to make your own. 72 and 73 uses the same gasket due to having A.I.R. system. Definitely will leak without one on those two years.
Fernando