The Interceptor is the second generation V4. They were developed from the S and the C. I don't think it's a stretch to say they are basically the same, as one is developed from the other and they are all V4, DOHC motors. The top ends are very much similar with the differences mostly being that the F has 5 gears and is chain driven. And it's the third generation VFR that had the gear driven cams. My reference was to the F. Regardless, the point is still the same- F or R is a better platform than the Sabre or Magna, which like Teazer said is a formidable red light to red light drag bike.Same configuration, but they are not the same engine...at all. The Intercepter cylinders are canted back further, gear driven cams, chain drive. I don’t think there are many parts, if any, that are interchangeable.