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I do all my own stunts
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I am looking at a 50's metal fendered Kenworth as my next project. It will be mostly a restoration but I may take some liberties with powerplant and drivetrain to make it more fun to drive. The truck I am looking at is what they call a "low mount" It has a little shorter radiator and cab. They were commonly used as fire trucks along with other stuff. Current motor is an ailing 220 Cummins. I have 3 primary options I am looking at and then a couple outlying ones I would consider. #1 if I can find a healthy one would be an NHRS 300 Cummins supercharged engine. It is era correct, they sound awesome and would be all the power that truck would need. They are hard to find and also hard to obtain parts for anymore. 2nd/3rd Option would be move up to an 855 based motor like a 335 or 350 small cam or my bread and butter, a Big Cam III 400. The issues I see are fit and having enough radiator to keep a bigger motor cool. I doubt the truck will ever pull all that much. A car trailer or my RV trailer are most likely the only kind of work it might do. I would consider a Cat or Detroit based on fit and cooling limitations. An 8V71T would probably be sort of a tight fit. I am open to suggestions and ideas. I haven't bought the truck yet so I am only in the planning stages at this point.
 

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Sound like a cool project, to the best of my knowledge the 220 is pretty much the same outside dimensions as 855, so shouldn't be a difficult swap. if you didn't pull much of a load the rad should handle an 855, and you could prolly cheat and remove the JWAC manifold and run a 335 intake for a more vintage look. the egts should stay well within reason as long as you don't show off too much. Lo mounts look so cool hope you get yours :thumbsup
 
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