Here in Kansas, I figure about 90% of them have been hacked to install the newer style 235/261 but the good news is, it's totally unnecessary.
We have access to water pumps, water pump adapter plates, and fans to make the newer style engine fit perfectly without ANY hacking of any part of the truck. You do what you have to do back in the day, but thankfully we have more information now. If it bothers you, it's fixable.
