True NATH-RSZT, but don't you then have a problem in that the cam belt routing is in conflict with the water pump?

I believe the belt routing was changed as 'a minor' improvement in reliability and longevity as the belt engagement with the Cam pulleys (particularly on the exhaust) is increased. That then cascaded into the pump relocation, which was 'over designed' with a 'handed' body.

So would you have to convert to Silvertop head as well? And then, as you couldn't use the Blacktop engine mount/centre cambelt cover......well I suppose that's not an issue if your already doing a swap requiring fabrication of custom mounts.

I just wonder if its not just easier to start with Silvertop in the first place ?

Martin