The 240 would be cool. With the light truck you will find its pretty peppy. I prefer the simplicity of the 616 617 engines over the more complicated and touchy later 601 602 603 engines.

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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.