Cam bearings
Rumblefish, i'm justa new guy but when i asked this question here in Britain there were two suggestions. If the engine is being rebuilt let the shop do it.
Alternatively, some of the guys made up a tool to press the bearings in/out whilst on the stand without needing a full teardown.
I think the firewall/bulkhead will prevent you doing the job in situ as the rearmost bearing also has a freeze plug to press in.
I chose to let the shop do it as the bearings are easily damaged :thumblef: