Well have been tring to find out get prices of repairing or replaceing the 53 block. Most places say that don't know about repairing the block. The few that do one said 3 to 4 hrs to $1500. 00 to $2500. 00 for a repair to start. The short block prices range form $6800. 00 plus labour to $17,180. 00 for a long block. The dollarshop that I bought the truck from, I haven't heard from yet. ( That won't happen) The core price is 1/2 return being cracked $2300. 00 Would be nice to be south of the border.