Attention: TDR Forum Junkies Okay I know that I have read about the 53 block being bad, 
what is so bad about it? do I have one on my 2001 it was built in April. There is a 53 number sticker on the valve cover sticker, like 53043 or something, Is there a number on the block to look for so that I know 100% , thanks Is there another thread or picture that I can look 
thanks. by the way I love my fass system it wasnt that hard of an install other than where to mount it out of the way, the truck runs alot stronger and I dont need to have the box turned on as much usually 3 but now a 2 !!!!! still smokes though but thats from the injectors, one more question, can I remove my old lift pump from the truck ? or should I still keep it on I dont need it anymore, ? 
what is so bad about it? do I have one on my 2001 it was built in April. There is a 53 number sticker on the valve cover sticker, like 53043 or something, Is there a number on the block to look for so that I know 100% , thanks Is there another thread or picture that I can look thanks. by the way I love my fass system it wasnt that hard of an install other than where to mount it out of the way, the truck runs alot stronger and I dont need to have the box turned on as much usually 3 but now a 2 !!!!! still smokes though but thats from the injectors, one more question, can I remove my old lift pump from the truck ? or should I still keep it on I dont need it anymore, ? 
but i saw this thread and thought i could help check out this thread on the second page 
