who has cometics that dont leak
03-04-2006, 06:04 PM
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who has cometics that dont leak curious to see how many people are using cometics with/or without a leaking issue.Not sure if i want to try them??Any one who has experience with these good or bad please chime in.I want them to run a .045 thick gasket,i dont know if anyone else makes one at .045" thanks
03-04-2006, 06:18 PM
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Originally Posted by redtail2426
curious to see how many people are using cometics with/or without a leaking issue.Not sure if i want to try them??Any one who has experience with these good or bad please chime in.I want them to run a .045 thick gasket,i dont know if anyone else makes one at .045" thanks
Cometic is a very respected name in the gasket world. The lsx crowd has been using, and re-using, thier gaskets for years without issues. They are not the only ones who make a .045 as I believe Fel-pro makes one too.
03-04-2006, 06:19 PM
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my engine has only 15k miles on it and the heads are freshly milled .018.I think the speed on the mill was a little high,as they have a dull appearence to them,very flat and true though.
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03-05-2006, 10:41 AM
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On my H2 install with AFR heads and ARP studs they seeped for a couple hundred miles. Then they sealed. No fluid loss for the last 500 or so miles.
I was sweating bullets every time I opened the hood thinking I was going to have to pull them.
It helped out to drop a tab of that GM sealant in the overflow tank.
I was sweating bullets every time I opened the hood thinking I was going to have to pull them.
It helped out to drop a tab of that GM sealant in the overflow tank.
03-05-2006, 10:59 AM
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.040 gaskets, copper spray and ARP head bolts. No leaks after 800 miles. Like someone mentioned above deck surface prep is the key to ensure a leak-free seal; especially on a used block. Basically both surfaces should be as smooth as possible. I also use Lacquer Thinner to wipe down the surfaces.
