Thin Copper Head gaskets for 230 flat head motor

[grady hawkins]

I seem to recall that there use to be a thin copper head gaskets for these flat heads back in the day.

Does anyone know if they are available anywhere?   

[desoto1939]

I know of the standard copper head gaskets and they came in the 23 inch and 25 inch version depending on which car and motor was installed in your car.

 

There are various manufacturers of head gaskets, so you also need to verify that you are purchasing the correct gasket for your engine

 

Have never seen real thin head gaskets only the cooper with the asbestos lining between the two halves of copper.

 

Rich Hartung

[Dodgeb4ya]

Have never seen or heard of one either.

[greg g]

Have a solid copper one on my 230.  Have one in reserve.  They are copper only,  3mm thick give or take.  45000 trouble free miles. I am told they are reusable after being annield.  Got them from a fellow who said they are from the marine engine limb of the family tree.  He said he got a dozen or so when a marina`s engine shop closed down.  Have no idea where marinas may source them

[Sniper]

might talk to these guys

 

https://www.robertsmotorparts.com/head-gasket-1935-1959-6-cyl-plymouth-dodgeshort-engine-and-dodge-trucks-up-to-1-ton-1-1-1-1

[desoto1939]

5 hours ago, Sniper said:

might talk to these guys

 

https://www.robertsmotorparts.com/head-gasket-1935-1959-6-cyl-plymouth-dodgeshort-engine-and-dodge-trucks-up-to-1-ton-1-1-1-1

I went to Hershey this fall and a vendor just down from my site had the copper head gasket for my 39 Desoto still inthe MoPar wrapper for $10 and the wrapper also listed the years that it would fit and this was for the 25 inch gasket.

 

So knowing the prices that the  big guys sell items for it was a no brainer to buy it for $10 and no shipping.

 

Rich Hartung

desoto1939@aol.com

[Sniper]

51 minutes ago, desoto1939 said:

I went to Hershey this fall and a vendor just down from my site had the copper head gasket for my 39 Desoto still inthe MoPar wrapper for $10 and the wrapper also listed the years that it would fit and this was for the 25 inch gasket.

 

So knowing the prices that the  big guys sell items for it was a no brainer to buy it for $10 and no shipping.

 

Rich Hartung

desoto1939@aol.com

 

You are absolutely correct, there is a lot of that going around. 

[Jocko_51_B3B]

Andy Bernbaum also has the correct copper head gaskets.

https://www.oldmoparts.com/parts/l_engine/cylinder-head-gasket-2/

 

[Sniper]

Bernbaum's new website layout blows chunks

[Sam Buchanan]

I just looked at it and it throws a server error if you try to go back to a previous page.

[Bryan]

Why?   Can't get better than Rock Auto on these..

[Bob Riding]

I did some research a few years ago, and found that most of the correct copper gaskets were .078"-.085" thick Bernbaum, Roberts, RockAuto, etc.  From Greg G's example a 3mm thickness would equate to 0.12". Obviously thinner is better if you are looking to increase compression ratio and power, but no one had anything thinner than 0.78". Maybe someone with a plasma cutter make something out of stainless steel?

[greg g]

Brass maybe?  Stainless might not be compliment enough.

[Bob Riding]

12 hours ago, greg g said:

Brass maybe?  Stainless might not be compliment enough.

Good point. I believe Chrysler used SS gaskets on some of the early hemis and they were known to prematurely fail.