Cooper rings for Ford Gurney Engine

[JCebe]

I’m looking for some Cooper rings for my Gurney Weslake engine. Does anyone have any they can part with or know who can supply these rings?

Thanks for the help,
James Cebe

 

[Ian Anderson]

Try Mathwall engineering

They build and repair a few of these engines for race teams

Ian

 

[JCebe]

Thanks. I’ll give them a call

 

[Ole Nylende]

I just had a look at the arrangement print for this engine. As far as i can see the headgasket is not listed as a special item for these heads and there is a note stating "all other components not listed are "fomoco" parts".
So i would guess a cooperring gasket (or any other std gasket) for a regular 289/302 would work?

 

[JCebe]

The Cooper rings are the same as those used on my 302 Tunnelport which also uses a C8FE block. The Tunnelport doesn’t use a gasket with the Cooper rings but I thought I read somewhere that the GT40 Weslake engine did. If it just uses Cooper rings, that’s fine, then I just need the Cooper rings and no special gaskets to go with them.

 

[Ian Anderson]

Sealing ring - Cooper

97.3mm Dia ID x 105.4mm Dia OD 2.23mm fitted height

crosthwaiteandgardiner.com

 

[JCebe]

That size you listed there is not correct for a SBF 302 bore. I will contact them and see if they make other sizes. Thanks for the lead, I appreciate it.

 

[JCebe]

I saw an old post from Scotty13 about Cooper rings and it sounded like he found a place that would make these Cooper rings for him. Does anyone know who that might be? I messaged him but he hasn’t responded. I’m not sure if he’s on this site anymore.

 

[Scott Turner]

Good morning and sorry for the delay. They were in UK and I will need to back track and look.

Scott t

 

[JCebe]

Thanks for getting back to me Scott. I appreciate your time and help with this.

 

[RayD]

Curious to learn about more about "Coopers" (or "Wills") Rings, I found this:

https://www.gt40s.com/threads/cooper-piston-rings.54823/

Best of Luck!

 

[Scott Turner]

trelleborg is the company I found. Very hard to get the correct everything for them to work. If you have the old ones, that helps.

Scott t

 

[JCebe]

Scott,

Did this company make the Cooper rings for you or did they stock them? I have a couple original rings that I can get dimensions off of if that’s what they need to produce them.

James

 

[Pedro]

Has anyone looked into this company?

Coopers Rings | Copper Head Gasket

Atlas Gaskets: manufacturers of high quality, specialised coopers rings. Specialist gasket makers of high performance copper head gasket for vintage autos motorcycles & stationary engines.

www.atlas-gaskets.net

 

[JCebe]

I got a quote from them back in January to make rings that look like they’ll work. The problem is the unit price per ring. Here is what they quoted me and the dimensions of the rings they can produce.


Dims
I/D - 104.6+0.10/-0.00mm
O/D - 110.6+0.00/-0.10mm
Uncrushed - 2.82mm
Crushed - 2.032mm

Qtys. 50 100 250 500
Unit Price £78.00 £65.00 £59.00 £50.00

Prices are ex-works (exclude carriage & insurance)


If there is enough interest, we can have them make a batch. I was hoping someone here would have a less expensive source for these rings.

James

 

[Pedro]

Guess we need to keep looking!

 

[JCebe]

That’s what I said when I saw the prices.