Hmm must have over looked them.
Finally found info. all series 2 from 95 on up had these. They only difference with my block is that it has two knock sensor locations on each side of the block. That started from 04 on up. At least now I know what block to look for. Thanks for all the help guys!
no, any series 2 also has 2 knock sensors. that was not new for 04+