If you've always wondered how you could get your hands on a cheap 4BT Cummins, this is your answer...
Old, retired bread vans are the best way to score a 3.9L B-series engine. A friend of ours recently got his hands on this 4BTA-powered, five-speed manual-shift bread van for $400! While that's an obvious steal, we're told they can still be had for $1,100 to $1,250 regularly.
The 4BTA designation refers to it being aftercooled (intercooled), but the kicker with the 4BTA, as opposed to the 4BTAA that was air-to-air intercooled, is that it uses a water-to-air intercooler. The 4BTA engines are great for tight spaces, hence the bread van application, and were typically governed to 2,400-rpm... so you know these engines are about as fresh as the day they rolled off the assembly line.
As proof of just how hot an item 4BT's still are, a mutual friend already bought the engine, sight unseen, from our friend. He plans to scrap the VE rotary injection pump and fit the engine with an A series P-pump he picked up for nothing at a junkyard.