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[Crofter]

As someone else mentioned, unless you go for one of the modern aluminum high speed diesels, anything with adequate power is too heavy for the front end of a half ton pickup. Unless you fiddle with rear axle ratios most agricultural or industrial diesels of old were pegged in rpm at about 60 mph. I am familiar with one installation of a 354 Perkins in a Ford 250 and it was not something the fellow would do again.

I know quite a few who have replaced diesel engines in loaders, skidders, etc with gas engines because of the expense of replacing a fubarred diesel. I have made up transmission adaptors, mounting brackets, drive shafts etc. for them and altered radiator outlets and cobbled control linkages for throttles, clutches etc. Many people give up long before they muddle through most engine conversions after the contemplated three day project stretched to three weeks.

Nah! I think those plans will do much more to solve the problems of the seller than 99.9% of the rubes that buy them. In that respect they work entirely as designed!