-----> Brought back from the dead, then THREADJACKED ! <-----
Yeah, the HF came as a CRX, but the parts compatibility is the same as any Honda from that gen.
The HF will have aluminum rear drum brakes, roller head and DPFI. The Trans will bolt up to the D16 and will give you some funky gears. the 88 HF has longer gears throughout the gearbox, and the 91 has specialised gears (Short first and second, normal 3rd, 4th is higher than 1:1, and 5th is very long).
Nothing on the Sedan will fit the Hatch or CRX - In terms of body. Even through the front end of the car, the panels are all different. Same for mirrors and interior bits. You can make all of it fit, but some fabrication will be in order.
The 90 Sedan has the same gauge cluster and wiring as the 90-91 Civic, and the mirrors are compatible (So if you get one without a passenger mirror, a Civic mirror will bolt in, the CRX mirror will need modding) (I am currently running a 91 Civic hatch with 1988 CRX side mirrors, and the mirrors stretch WAY out to the sides, and it's tough to get the mirror facing in to see the door... just the way I like it)
The Gauge clusters and interior panels are different from 88-89 than they are found in 91-92. Zenki and Kouki.
The Sedans are totally different in handling than their Hatchback counterparts, and the trunk on a sedan is useless.
-> Steve