I will be assembling my new Y Block engine soon.  I have a few questions about assembly lube.  In the past I have used Red Line Assembly lube on the bearings and black molly paste on the cam and lifters.   I use ZDDP additive for solid lifter engines and 30 weight oil for break in. I see special break in oils advertised on the web.  What are the best lubes and oils to use on assembly and break in?