Originally Posted by Asleep

00-01 ka into a 95 will require the swapping of the intake manifolds, the distributor, the water housing and the a/c bracket. your mechanic will also have to rewire the knock sensor. any competent mechanic can figure out what needs to be done, but the above HAS to be swapped. if you do everything i said, the ecu will work with no problems.

as far as altima and 240 ka's go - no, they are not interchangeable. some of the internals are, but the head and block are not.