Re: '51 Build w/4bt Cummins
The 4bt will be easier to fix over the 6 cylinder and will have more than enough power to get you where you are going. If you want the power of the six, the 4bt can be tweaked to make power beyond the stock first Gen 6 cylinder Dodge/Cummins engines. Yes, the four and six cylinder engines have a similar cost, but there is little space in your engine compartment, especially when you add things like inter coolers, transmission coolers, and climate control equipment.
-Joe
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