Another HG Question

[MichaelSuch]

Ok, so I searched and searched and really couldn't find what I was looking for. I have a head that I am in the process of rebuilding (hot tanked, resurfaced, new valves, and valve seals) and can't figure out what head gasket I should use. The block will still be in the car so having the block decked isn't a possibility. I have read mixed reviews, if you're not having the block decked then you'll have sealing issues with a metal HG. I have ARP headstuds coming in for it and plan on running maybe 20psi of boost. Will an OEM replacement gasket be fine or should I take my chances with a metal headgasket? I don't want to have the problem of the metal HG not sealing properly, but I don't want to have the HG blow out either. This is all going on a DD car (which is seeing about 65 miles a day, not driving it very hard). I figured with arp headstuds and keeping it somewhat easy on boost I would be fine with an OEM replacement, but you know more than I do so I need your input.

 

[1992awdlaser]

An OEM Mitsubishi composite gasket will be fine. I run 25-28psi with my 50 trim on the stock gasket with arp headstuds.

 

[SonySlave]

OEM composite should be fine as long as you aren't knocking like crazy. If you are really concerned, you could spend the extra money and have the head o-ringed for the added protection... Just a thought.