are these the same heads
are these the same heads i have two sets of heads and i was gonna use one of each but noticed they had different casting numbers wondering if someone can tell me if there the same or not, the first set are off a 2000 silverado with the 5.3 number is 9930721565439864 and the second set are off another 5.3 at least i think it is not sure of the year but the number is 0210522096033680 those are the numbers on the inside under the valve cover and the number on the corner of the head both say 862 just wanna know if there are any differences thanks for any help anyone can give me
heads im doing a ls swap in my 96 1500 and im just keeping motor all stock its just one head got broke when the donor truck got in an accident and i had another 5.3 that the lower end was bad in so yeah im trying to do this as cheap as possible money is tight right now lol
heads ok cool thanks i just wanted to make sure and yeah my truck is the budget build im saving my money to build a motor for my 2000 z28 the truck just has to run good enough so i can drive it though the winter cause its about to snow and that means i gotta park the camaro for about 6 months 
