Is this motor worth anything?

Recently, one of my close friends rolled his 1990 Dodge D100 Truck. The Truck sat on his property and his parents are sick of seeing the mangled wreck. So he gave me the truck. I was wondering if any off the truck is of value or am I better off parting pieces out and buying different motor and trans for my 74 Duster. The thing ran good and felt pretty quick for a truck. Just wanted to see what you guys would suggest.
Thanks, Sam