Not sure about oversize lifters, I know the lifter bores can be sleeved and resized, my bet would be the lifter bores are bad out of round, as well as all the other's..  
I think the days of finding a decent used motor are gone sad to say...
				
			I think the days of finding a decent used motor are gone sad to say...
 
					
				 
 
		 
 
		 
 
		 
 
		
 
 
		