b0b

iTrader: (1)

Switching from a cometic mls to GM mls. H/C LS1 will have 100-150 nitrous plate. Is it a good/bad idea to use the permatex copper gasket sealant spray?

.boB

iTrader: (1)

They are designed to go on dry, as supplied.

00SlvrSS

Dry. Nothing else.

gsxrdan2

iTrader: (2)

I just performed the same install,I tried them dry with studs.I'll lyk how well it works in a couple months.

Marc 85Z28

iTrader: (8)

All MLS gaskets are designed to go on dry. They're also designed to be used with a proper sealing surface, which most don't have unless both the head and block were finished at a machine shop. For that reason, use the spray.

b0b

iTrader: (1)

Ok so we can agree they are "designed to go on dry". If you have two surfaces that aren't freshly machined is it going to "hurt" to use is at extra insurance. I'm doing this because I'm pushing water on WOT and have tried EVERYTHING else but head gaskets. Don't want to do this and still have the same problem.

Darth_V8r

iTrader: (4)

I've used copper spray on my last two MLS head gasket sets. I agree with above post. Shouldn't be necessary, but in the garage with less than ideal surface finishes, the copper spray is cheap insurance. No harm in using it. No leaks on either of mine.

Majestic9C1

iTrader: (19)

better to have it and not need it then to need it and not have it.

b0b

iTrader: (1)

Thank you very much. You think it will be ok with nitrous?

Darth_V8r

iTrader: (4)

I honestly think so but I have never used nitrous. I can't imagine why it would be harmful with nitrous.