Z6 swap

Im getting a new engine for my 91 si, and all i need to know is, will the d16z6 complete engine,fit in my 91 si, with out any modifications, besides the dizzy and needing rpm stitch for vtec, ive searched for it and found nothing that will help me, so that would be great, cause mines toasted

Hope this helps: http://hybrid2.honda-perf.org/tech/sohcvtec.html