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I have considered the Cummins 4BT but I really don't want to go with the 4-5" lift or put up with the noise I have heard is associated with that engine. I could actually deal with the noise more than the lift. I wonder if there is any way to modify the oil pan so you could only do a 2-3" lift, I am planning on doing that anyway, just don't want to go all the way to 4-5". I am a bit concerned about power with the Isuzu as well, what is it about the Cummins that makes it more powerful than the Isuzu? They are the same displacement? It seems like it would be easy to increase the output of either engine considering they are both turbos. I really wish I could find someone who has done the Isuzu FJ80 conversion so I could see if they are satisfied. As I said, the GM diesel has been done many times and there are many good testimonials on the various websites but the biggest plus is the the "kit" to install it.
Any other thoughts?
Rusty
94 FZJ80 waiting
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