slant 6 rebuild and upgrade list

just got the numbers off the top of the deck and they are
W 225 6079
side of the block is(front ) 530-7 (by starter )0398:

some other numbers on the rear section of the deck on the passengers rear top is 8B333549.
so any Idea what year block this is?
I know it is not a hydraulic block since it has adjustable rockers and solid lifters so that rules out 82