The 4BT measures in at 30.6″ in length, 24.6″ in width, and 37.7″ in height. It’s smaller than many V-8 engines commonly used for swaps and offers significantly better fuel efficiency. The 4BT engine is ideal for engine swaps in smaller vehicles because of its relatively small size. This is one of the updates that helped second generation 4BTA Cummins engines produce greater performance specs. After 1998, these engines used a four valve per cylinder design, for a total of 16 valves. When the 4BT Cummins was released in 1983, it featured 2 valves per cylinder, for a grand total of 8 valves. This results in a durable foundation capable of withstanding serious abuse. Both the engine block and the cylinder head are made of cast iron. The 4BT engine uses the same pistons, connecting rods, injectors, injection pump and valvetrain as the famous 12V Cummins. In fact, if you take away two cylinders you almost have the same engine. It shares many of the same components as the 6BT Cummins, the 12-Valve 5.9L Cummins engine found in the 1st Generation Cummins. The acronym, 4BT, means four-cylinder, “B” series turbocharged. The 3.9L 4BT Cummins is a diesel turbocharged engine that utilizes an inline 4-cylinder design. Find the owner on instagram 3.9L 4BT Cummins Engine Design Let’s get into it! 3.9L 4BT Cummins Engine that is going into a Nissan Patrol GQ SUV in Australia. In it, we cover 4BT Cummins engine specs, performance attributes, and where these engines can be found for sale. To help our readers decide, we create this post, our comprehensive 3.9L 4BT Cummins Guide. If you are looking for the perfect Diesel engine to swap into your project vehicle, the 4BT Cummins engine might be the right choice for you. In addition to their small size, the 3.9L 4BT Cummins diesel engine offers other advantages as well, such as impressive performance specs and the ability to last hundreds of thousands of miles. We see a ton of 4BT engines swapped into Jeeps, SUVs, and even cars.
It’s extreme durable like its 6BT relative but it takes up significantly less space. One of the most common Diesel engines used on diesel conversions is the 3.9L 4BT Inline 4-cylinder Cummins engine.
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