So I was watching some videos on YouTube, and heard an interesting tidbit on the topic of head gasket choices. Now, this was about a 4G63, so not the same engine...however I think it'd still apply to our engines. After all, the 4G63 is still a cast iron block with aluminum heads, and a four cylinder to boot. Anyways, the guy stated that he had consistently run multiple engines at over 20psi of boost, with the factory head gasket material (graphite, same as ours), without any problems. That was with ARP head studs. Ever since I heard that, I've been debating just using the head gasket I've already got. I figured I'd pose the question here, see if anyone has any input.
The video in question was by a YouTuber who goes by "Jafromobile", by the way. I STRONGLY encourage anyone remotely interested in building engines to check his stuff out. The guy is a treasure trove of knowledge. I'd say 90% of what I know about building engines, I learned from him. I just wish he was a Miata guy, instead of a DSM guy. It doesn't truly matter though....most of the information is good for our cars, too.