Ok I put new large journel rod bearings in. -.010 size, crank measures 2.0870. it was turned a while back. Crank is in great shape, I just wondered how hard it should be to turn over? Before I could turn motor over fairly easisly with the v-belt pully mod I use a braker bar and its tough. Doesnt bind just has a very snug fit. Very smooth but snug I sed tons of oil when putting the new bearings in so they are VERY well lubricated..... Just curious what weight oil I should run with a .003 gap, and how I should break them in.

 

you don't really break in bearings. Just drive it fairly easy until the oil is up to temp, then go hard.
10W-30 oil is fine.
what's your endplay?

 

What are you trying to turn over? Only the crank? Crank and pistons? Crank, pistons and cam with the heads on and plugs in?

 

crank piston and heads with valves adjusted, no plugs in. Its really not that hard to turn over my buddy tells me.

 

I would pull the oil pan and plastigage every bearing. It isn't impossible that one of the journals were turned incorrectly. ESPECIALLY if the crank was the only thing pulled (ie: rings are not new).
Also, was the crank pulled because of bearing failure?
If so it could hane an out-of-round rod end.