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Welcome :D

Well where should we start!

The Cummins 4bt is just like the Cummins in a Dodge truck 89-98 , just take off two cylinders.

4 = cylinders
B = series
T = turbo
A = aftercooler ( air to air or water )

The 4 bt fits nice in a jeep as a 6bt fits nice in a Ford.

It's not hard but you need to do your research to find if it's right for you .
Time,money and the end what are you needs?

The questions you just asked are here take a look around in the build up section and also the 6B section .There are few of Knox guy's around here .

If you need more info ,Just ask and I also do Cummins conversion !

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