f2 engine swap

james m · 05-12-2006, 4:10 PM

kinda new here.. im wondering if anybody could answer some questions for me on engine fitment. i have a 94 cbr 600f2 i was wondering what engines are drop in replacements for mine. i assume 91-94 600's are? can the f3 engines be bolted in? f4? what about a bigger engine, say a 900?? any information would be great.. thanks james

BDA116 · 05-12-2006, 4:19 PM

The F3 engine will bolt right in, but you'd be better off with the wiring harness and ecm from an F3 as well.
You can shoehorn a 900RR engine in as well - with the proper harness and ecm, but it isn't a direct bolt-in. There is some work to be done.
I don't know what exactly as it has been over a decade since I helped a buddy put a 900RR engine into his F3.
I doubt the F4 is difficult to put in, but any time you are switching to a different model engine you'll need the full thing, including wiring harness and ecm.

bdropped · 07-30-2006, 12:30 AM

**** i wonder how hard that 900 swap would be? i am a proficient welder. hmmm any one have any idea?