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P7100 Fuel Pump Modifications for the 8 Valve 4BT

P7100 Fuel Pump Modifications for the 8 Valve 4BT

4BT Engine History and Background 4BT (3.9 L) 140 HP Engine The Cummins 4BT has mostly been utilized in applications such as box trucks, small industrial vehicles and agricultural equipment. The 4BT is pretty much just a downsized version of the famous 5.9L 12V Cummins as these engines share almost all of their parts such…

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How to Get More Life from a Cummins Diesel Engine

How to Get More Life from a Cummins Diesel Engine

6BT (5.9 L) 210 HP Engine Diesel technology has come on leaps and bounds in recent years, from ultra-low sulfur diesel to biodiesel, gaining DPF filters to cut down on emissions, and high efficient common rail injection systems to gain maximum miles per gallon. All of these changes are good news if you are taking…

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Latest 4BT and 6BT Build Cycle

Latest 4BT and 6BT Build Cycle

What a great end to the week here at Big Bear Engine Company. We just finished up a build cycle of 18x 4BT (3.9 L) and 6BT (5.9 L) Engines. Take a look at a few pictures of the finished product before final packaging. 18x Brand New 4BT and 6BT Engines 6BT (5.9 L) 210…

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