I'm new here and I've been searching for information regarding a swap for a k1500. Mine is a '94 GMC Z71. I was wondering how hard it would be to swap a 4BT into my truck, and I was hoping to get an idea of how much it would cost, and how hard it is to do. Thanks for any information. It was recently painted so it looks like a brand new truck, now i just want to do something about the gas mileage (9mpg!) and lack of power.