This is what a guy told me, is this correct. For a b18b1 going into a 1990 integra

Use the B18B timing belt cover still, you will need to change the lower half of the driver side engine mount. To change the lower half of the mount you will need to take off the timing cover to get to the bolts. Just swap over the lower half of the mount from your B18A. Its the cast iron piece with the stud on top. I think it's held on by three bolts. If you don't swap that the driver side mount won't line up in the engine bay. If that isn't clear enough I could try to get some pictures for you.

 

yes the guy is correct. the a1 mount is angled differently.