383 on ABody BB KFRAME?

My 383 came out of a '70 superbee and does have the bosses above the oil pump. I had to drill and tap them 7/16" myself. I have 2 other 440's that only have one boss about 1" below the head gasket surface and it is drilled and tapped 3/8". My '72 early production date 400 didn't have any (230 casting). Hope that info helps.