Ford_Assassin

iTrader: (4)

Hey guys, I am re-installing my driver side head tomorrow on my 5.3 (broken exhaust stud removed). I have both the head and block prepped and ready to go, but wondered if I should copper spray coat the stock type GM MLS head gasket before installing them?

I've always done this in the past with Gen I SBC and Mark IV BBC's when using steel shim head gaskets, but the LSx is a whole new animal to me.

Thanks guys!!

vettenuts

iTrader: (4)

Not called for in the service manual and I think it is unnecessary. The GM MLS gaskets have a very nice seal ring around all the critical areas and are pretty forgiving as along as everything is clean.

PREDATOR-Z

If new gasket, no.
GM MLS seal very well.

Ford_Assassin

iTrader: (4)

Huh?

It is a new GM MLS gasket, but why do you say they don't seal very well?

thunderstruck

iTrader: (15)

I think he is saying ' if its a new gasket then no copper spray cause gm mls gaskets seal very well'

PREDATOR-Z

is that better?

Ford_Assassin

iTrader: (4)

Much

Randy WS6

iTrader: (69)

I spray mine , but i use a big shot of nitrous. I use copper spray for extra safety under high load

Grimes

iTrader: (3)

just make sure the surface is cleaned well, and install dry

Ford_Assassin

iTrader: (4)

Okay guys, I installed them dry and clean.

I guess we'll see in a few weeks how it goes.