Intercooler2

iTrader: (24)

Any special install prep? On my Buick I used Copper spray but don't know if it is needed on the LS. Everyone use the stock torque sequence and specs?

conan

iTrader: (5)

I didn't use any copper spray on my cometics, (some do) I just wiped the block, heads and head gaskets with some brake cleaner and put the heads on. Torque specs... I used gm's torque order and arps torque value for the studs. If your using gm bolts torque them to oem specs.

Intercooler2

iTrader: (24)

Stock bolts. Any leaks?

brad8266

iTrader: (23)

I cleaned the **** out of the decks and used 2 thin coats of copper spray, sealed perfect.

conan

iTrader: (5)

No leaks here, I do use studs over the bolts. I have also removed the heads and reinstalled them on the same gaskets too. What ever you decide to do take your time and clean the **** out of the decks and heads with brake or carb cleaner. Also before you start cleaning blow all the head bolt holes in the block out with air.

Intercooler2

iTrader: (24)

Thanks for the tips!

Intercooler2

iTrader: (24)

New Patriot heads so should be okay there. I will get some GM Top Engine cleaner to do the block. What's the latest verdict on using spray? I did a search and some do/ some don't.

JonatRLMS

we copper spray all mls gaskets

Intercooler2

iTrader: (24)

Looks like it can't hurt. Only found one post of a guy said he block was being eaten or something to that effect. He didn't post back so I have no idea what he was talking about!

Bill Bowling

iTrader: (6)

I sprayed my a year ago. No leaks.

Bill