Is there any downside to moving to the 94mm cylinders vs 92mm's? My son?s project currently has the 92x82 for 2180cc. I can move to 94x82 for about the same cost as sticking with 92x82 in an upcoming rebuild.
I?ve read that the 94mm cylinders are preferred because they are thicker walled. I am considering a pretty serious rebuild of the HAPI engine that came with my son?s KR project. Specifically, we are intending to replace the crank and prop hub (with GP Top Bug and Force One), cylinder heads (with ?), alternator with GP, and cylinders with nikasil?s (not the LN Nikies). Since the case will have to be machined to accept the Force One prop hub, shouldn?t be too much more to machine for the 94?s. Cheers, Owen

