i have a h23/h22a frankenstein motor in my 93 prelude but it unfortunally it just got totalled out and it was a bad mofo. i have time slips for 13.4 sec 1/4 mile on 18inch Nitto neo gen tires. it is the baddest honda motor conceviable i give damn what anyone says or thinks. i will help you out or give you any advice you need if u want b/c trust me no bullshitting,off top u will love it the torque is absolutly amazing and when Vtec kicks in it is pure evil, u just have to watch ur redline if u keep stock internal in the h23 block. well got to go but hit me up with an reply or email lude_crs_9398@comcast.net - the 93 is for my block and 98 for the head - what can I say prelude rule