By Featured Writer: Mike McGlothlin The promise of medium-duty capability in a light-duty application has always made the 12-valve 6BT 5.9L Cummins an easy sell for Dodge Ram 2500 and 3500 owners. The cast-iron inline-six is about as robust as an anvil, features a simple 2-valve per cylinder design, and—thanks to having the kind of…
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6BT vs. ISB: Comparing the P-pumped 12-Valve Cummins To Its 24-Valve Successor
