RRSweden
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The engine shop considered my deck as good to go, and my heads are milled. I'm going to use the 0.020 steel shim gasket. Would you use copper spray or not? I've heard arguments both ways..
Copper spray or not on the steel shim head gasket?
- Thread starter RRSweden
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It won't hurt it. I like using it, helps with any imperfections on either surface. I just spray both sides of the gasket and let it tack up.
RT K_line
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Back when I used the shim type gaskets I used it without problems. this build I used felpro though.
brian6pac
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The first ones I did they told me not to use it and i had a coolant leak to the outside.
I got new gaskets and used copper coat no leaks now I use it on all steel gasket even Cometic gaskets with no problems.
I got new gaskets and used copper coat no leaks now I use it on all steel gasket even Cometic gaskets with no problems.
RRSweden
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What kind of spray did you guys use? Permatex?
Yatzee
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If the deck is clean and burr free and the heads are milled, you really shouldn't need it.
But if it makes you feel more confident about sealing the gaskets go for it. What does the machine shop that did your heads recommend, and what does the gasket manufacturer have to say as far as product warranty? Good head gaskets aren't cheap.
Yatzee
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66Satellite47
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Always used K&W Copper Kote with steel shims.
Garys1969RR
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I used the copper coat by Permatex on the .020" steel shim gaskets with iron heads, and most recently with aluminum heads. Never had a problem. Torque to 40 ft lbs, then 55, then final at 70. I used to use aluminum spray paint on them. Always sealed up good. Even at 13 to 1 C/Ratio, no leaks of any kind.
NEVER use ANY sealer on Cometic head gaskets. If you have not had any problems, you are lucky, period.
Yes, use a spray copper coat. The can I use is sold by K&W: https://www.summitracing.com/parts/SCE-G1612/
As a side note, if a gasket has steel on one side, and a composite gasket for the other side, ONLY coat the steel side.
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I've always used copper on steel shim gaskets.
Garys1969RR
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Copper coat is only about $9 at Advance Auto Parts.
Yea, I pay about $7 from a local store. I was just going for the picture of the can for him.
Cornpatch MO
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Do not put more coats of " copper Coat" on than what is neccessary. It will squeeze out in places where you do not want it...Extra coats will not help seal...........................MO
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