Is there anyone out there can tell me around how much should i spend to have my 330 oldsmobile engine rebuild back stock just a ball park figure will do .

 

Too many variables/unknowns to tell you..
Current condition of engine ?
Stock ? Or ?
Any current problems ?
Engine out of car ?
Your location ?
A shop doing the work ? Or you ?

If its in good shape, you could spend hundreds on parts & machine work & do it yourself...
Or figure adding $500 & up for labor...& more for parts/machine work if its not...