You gota love'em, I like to think of them as a big block chevy on diesel. I've got the sickness to. Got a pair of 271s. Like to start them up once in awhile, I also have a pair of 16V71s with twin turbos mounted on shids. The local scrap yard got in 5 of these and I was able to save 2 of them, have not fired them yet but I,m sure it will impress the neighbors.