Cummins 4BT Engine swap? - Dodge Durango Forum and Dodge Dakota Forums
Gen II Dakotas 1991-1996 Dakota-Specific Questions

 
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post #1 of 5 Old 09-24-2009, 02:51 AM Thread Starter
AlightBULLDOG
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Cool Cummins 4BT Engine swap?

I wanted too know If anybody out there has done a engine swap with a cummins 3.9L inline 4BT diesel engine!? If so what mods were done to to make it work, & fit into the dakota?

For those who want to know about this engine here are some facts.

Cummins came out with a 3.3L, & 3.9L Inline 4 cylinder diesels both B series motors, & called them the 4BT, & 4BTA. The 4bta is the newer gen motors.
The 3.3L is about 550Ib wet, & had 89hp, & 215Tq.
The 3.9L is about 750Ib wet, & had 130Hp, & 355Tq.
Both engines are cominly found in many step van applications such as frito lay, & bread trucks. The 4BT today is also popular as a conversion engine among many light-duty pickup trucks that were originally equipped with gasoline engines. Many have reported getting as much as 25-35 mpg.
The 4BT engines have the same pistons, connecting rods, valve train components, and injectors as their 6BT counterparts. The 6BT is the cominly found inline 6 cylinder 5.9L & the late 6.7L.

I have a 3.9L V6 Magnum stock rated at 175Hp & 220Tq & getting about 17 mpg.
Making the change to the 3.9L 4BT I would lose 45Hp & gain 135Tq.

A guy with a 4BT ranger ran a 8.27 at the strip. Here is the URL http://www.youtube.com/watch?v=yxnfY...layer_embedded

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post #2 of 5 Old 09-24-2009, 05:43 AM
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http://www.4btswaps.com/forum/showth...ghlight=dakota

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post #3 of 5 Old 09-24-2009, 06:08 AM
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Here is a link to a guy that did a 4BT swap into a 94 4X4 Dakota in Edmonton, Alberta, Canada.

http://www.na4wda.org/index.php/topic,1593.0.html

Russ
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Also his: 09 Power Wagon Hemi 4.56 gears 285/70R17 Duratracs factory winch and lockers
Hers-03 Dakota Quad Cab Sport 4x4 4.7 545RFE 5spd/Auto 3.92 L/S 265/75R16 Dueler RVTs 5th wheel hitch
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post #4 of 5 Old 09-24-2009, 06:24 AM
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Actually he is located just west of Edmonton in Stony Plain, here is a link to his homepage with all the Dakota swap pics.

http://www.khaoskustoms.ca/aspx/blob...x/msgid/443167

Russ
His-SASed 02 Dakota Quad Cab Sport 4x4 4.7 NV3500 5spd/Std D44/9.25" 4.88s lockers frt/rr 35" ProComp Extreme MTs frt EPi 9k Superwinch rear LP 8.5k Superwinch
Also his: 09 Power Wagon Hemi 4.56 gears 285/70R17 Duratracs factory winch and lockers
Hers-03 Dakota Quad Cab Sport 4x4 4.7 545RFE 5spd/Auto 3.92 L/S 265/75R16 Dueler RVTs 5th wheel hitch
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post #5 of 5 Old 09-24-2009, 07:14 AM
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6BT-Dakota (a member here) did a swap too, except he did it with a 6BT

Good thread too:
http://www.dakota-durango.com/forum/...ad.php?t=77610
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