if i got jdm h22a engine for my accord, what all would i need to change on the engine before i could put it in my car? i've read where you can't use the intake or exhaust manifolds, but i don't see why not. and anything else i might need to know would be appreciated, i'm new to all of this stuff. thanks alot

 

The motor bolts directly into the 90-93 accords without problems, it's the second easiest swap on earth (B-series EG #1). Unless you got the Type-S motor, even the exhaust bolts up perfectly.

You can't reuse your intake and exhaust manifolds because the bolt patterns are different.