Crank, barrel, gaskets and seals arrived. Fitted the crank, put the gears back in, pulled cases closer with bolts and then...
the cases didn't touch!

So I patiently took everything apart again - NOT! Pressed out the main bearings and measured them. Turns out the OEM main bearings are 1mm narrower than the ones I bought at Bearing Man. I took the originals and asked the sales guy to supply replacements, but never checked the width. So there goes my bearing saving because the OEM bearings are >R800 for the set.
Eventhough I lapped the valves and was happy that they sealed 100% I kept thinking that I'll have a brand-new motor soon with used valves and guides, so I ordered Wiseco valves and Kibblewhite guides. At the end of the project the only used parts will be the crankcases, gearbox internals, head, cams and valvesprings! Total cost so far is R13000. If Kenzogs didn't give me that fantastic head assembly it would be standing >R18000 already.
The difference between the OEM and HR cranks is only a 2mm off-set on the crank-pin which can be seen in the pic. This translates to a 4mm longer stroke and 28cc increase on top of the 36cc added by the 94mm bore.