Where have you been searching for the k20a2? I think you mentioned finding one or two for around $2500 - $3K in one of your initial posts....
-G
Well, the one I originally found for 2k has been sold. The type r k20a engine i found has sold as well. There are used ones online between 2 to 3k, however, there are also shops offering fully rebuilt, warrantied engines for around 3500.
Today, i felt around inside of the top of the engine through the oil cap. I ran my finger over the , everything felt smoothe, and i don't see/feel any kind of scoring/grooves. I have a day off in 2 days, and will remove the top half then. I wanted to have the head machined anyway, so maybe i'll find some better news once its open.
Also, it appears I may have an aftermarket header on here too, as the one in the engine doesnt look stock to me.