forgive me for asking if you mentioned it already but, which 2.5 HG's did you use? I am looking into doing the same build but not sure which gaskets to use. I have an EJ25 DOHC, and two EJ22 engines, all three basically complete, meaning I have all the parts for all three engines. The pisons and rods for the EJ25 are good but the crank is bad due to a spun bearing. The valves from both heads on one of the EJ22's are bad cause the timing belt broke and trashed the valves. The EJ25 is 1998, one of the EJ22's is 97 and the other 98. I've always liked the idea of N/A versus turbo or supercharging cause of the life expectancy and reliability. I have 302,xxx miles on my car and the heads are actually original. I had to replace the block at 220,xxx cause I was getting a horrible oil leak and couldn't figure out what was causing it. So anyways, I've been reading threads in here for months now deciding on what to do and you've (F4tune) helped me in my decision making.