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Copper headgasket

matuva

Tropical 6.5er
Messages
1,996
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21
Location
New Caledonia. An island in south west pacific, cl
Are they still made, and some for the 6.5?

My mechanic is looking for them. He says he likes working with these, even though you have to use sealant, especially around coolant holes.

By the way, what kind of sealant can be used to resist heat and pressure?
 

the copper gaskets need to be annealed in order to work properly.... 6.2turbo used them on his last build, and they leaked almost instantly, and he was using fire-rings... it is not recommended to use sealer on them, but some use indian head shellac... a better choice of gasket would be a cometic, but does not solve damaged decks.... fire-ringing can work up to a point, but the best is too have the deck machined flat again... they like to mushroom around the bolt holes...
 
Copper head gasket for diesel? Copper head gaskets are way old school for gas. There are better products out there. If you need more sealing on the diesel, you can have it o-ring'd, but it has it's own problems.
 
I tried all the head gaskets available,except the Corteco. The combination of o-ringed block and Victor Reinze gaskets works best for me.
 
We have a '74 GMC 478 V6 Turo Flow Diesel that runs copper gaskets, same set since new and been pulled 4 times for valves. Has 18.5:1 compression so they can hold high compression with good head bolts/studs.
 
Stay away from the Cometic.
I used one on the DaHoooley build and it lasted a year and started leaking between the layers.

FELPRO with either new bolts or studs.

I had fresh heads and a decked block on that build too.

The copper will not work well.

If the block has a wire "O" ring installed and the heads are receiver grooved, the copper might work.

I personally would use the latest incarnation from Felpro.

Just some thoughts

Missy
 
We have a '74 GMC 478 V6 Turo Flow Diesel that runs copper gaskets, same set since new and been pulled 4 times for valves. Has 18.5:1 compression so they can hold high compression with good head bolts/studs.

In another thread I talked about the 60's-70's GMC V6 gas engines in the context of cooling issues. As in not having any due to good engineering. The diesel based on those engines that I couldn't think of is the Toro Flow. Thanks for the memory jog. :mad2:
 
In another thread I talked about the 60's-70's GMC V6 gas engines in the context of cooling issues. As in not having any due to good engineering. The diesel based on those engines that I couldn't think of is the Toro Flow. Thanks for the memory jog. :mad2:

Glad I could help out! Ours nearly has million miles by our guestimation, it has only had the top end freshened up 3-4 times. Doesn't have any overheating problems loaded with grain and my tractor on a trailer behind.
 
To get back on topic. I have had good luck with K+W Copper Kote on head gaskets and others that are exposed to high temps. A friend of mines dad was a old school gear head and swore by Rustolium aluminum paint because it was high in AL powder. I think the metal powder based gasket sealers fill the imperfections in a less than perfectly machined surface keeping the hot gas from undermining the gasket. Back in the days of trying to keep head gaskets on Olds diesels Copper Kote was highly recommended. Read and heed the instructions.
 
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