Just Another FX4 build
#124
6.4 over Cummins unless it's a 12v. 6.4's are awesome. I want one so bad or a 6.7.
#126
#127
Senior Member
Thread Starter
It's fully deleted. Upgraded twins head studs. Air dog. Spartan tuned. If it was up to me I would just keep the 6.4 but he nows more about Cummins motor and how to work on them.
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jedeckert1984 (12-13-2014)