i dont know but if u read the link
http://www.nicoclub.com/articles.php?id=162443it states that all u need for the swap is a new ka and when going sohc to dohc on an 89-90 u need only these 91-93 de specific parts a intake, cluster,and harness so in my openion the long block should work so long as you use your original intake and sensors and stuff and switching the cams might be a good idea cuz from what i understand they are different.But i am not expirenced enough to say for sure i am still new to this ka 240 stuff sorry.Where do u live there are two after 95 ka's in a yard like 4 blocks from my house and hes hurtin' so if u flash like 350-400 he'll prilly give one up.their both se autos.I live in texas deep south texas.