talking to my engine builder he said :

The K24 would be a choice but new rods is a must with the longer stroke and ofcouse your plumbing for the down pipe and I/C would have to be altered slightly for the longer block. Your rpm would have to be lowered to about 7,400. That would be a beast of a set up. Lets just see what we have to work with and then the decision can be made.
Richard.