I am happy with the d series and my b series.
i agree with kris in going with a full z set up.
my friend has run a full sohc z set up in a crx. with tuning it makes it a fun little ride, now compared to his sickly rebuilt blueprinted type r or his old ls vtec ... well he doesn't want to compare it, just enjoy it.
i have a d16a6 Y8 set up and it runs well together.
I would think stock gaskets would work for you. The intake mani will be a huge bizotch to take off most likely and be prepared to scrape the old gasket off.
Have you looked at the cams to see the difference in the lobes?
You may have to change the timing belt due to the different head going on the block, if you do, buy OEM.
hope you can post on d-series soon there are some guys that really could help you out on there.
on difficulty...well to me if you have the right tools and knowledge available the difficulty goes up or down
__________________
if you can only race me in a straight line then whats the point 
...91 SMF SCCA
http://www.flickr.com/photos/8341770@N07/5601083432/http://www.flickr.com/photos/8341770@N07/5601083432/ by http://www.flickr.com/people/8341770@N07/, on Flickr
I see people out there spending money on the car to improve it … If you spend half that effort just working on your driving skills, making you and the car work together as a team, then you’ll go faster – period. To make the car go a second faster on the track takes a lot more energy and money than making yourself drive it one second faster.
– the late Tom Thrash SCCA Solo E Production
Last edited by chi town brat; Jul 20, 2004 at 06:27 AM.