4bt Swap
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Joined: Oct 2007
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From: NC
4bt Swap
A quick update for those that are interested in a 4bt swap into a '99 4x4 ex cab.
Got my motor last year and have been tracking down parts for the swap and going through it as I have time. So far I've had to get:
Alternator and bracket (to test run it - could use OEM one from the Dakota I'm told)
Lift pump (old one was cracked)
Dodge Cummins flywheel/pressure plate/clutch/flywheel housing
Dodge Cummins clutch housing
Exhaust flange and V-band for turbo
Dodge Cummins starter
Hoses
Fuel lines
Various bolts/fasteners
Fired it up today bolted to a pallet in the garage - what a neat sound! Still have to plumb water lines to the radiator so I only ran it a few seconds but it was neat to hear! Video as I get time...
Don't know when I'm going to take the Dakota off the road and start the actual swap - still some things to work out on paper before I tear into it and I don't like the idea of being without my truck...
Plan is to use the stock transmission (AX-15) as long as it holds up - it's mostly an over the road truck so I expect it to do fine.
Fire away if you have questions. I'll take lots of pictures.
Got my motor last year and have been tracking down parts for the swap and going through it as I have time. So far I've had to get:
Alternator and bracket (to test run it - could use OEM one from the Dakota I'm told)
Lift pump (old one was cracked)
Dodge Cummins flywheel/pressure plate/clutch/flywheel housing
Dodge Cummins clutch housing
Exhaust flange and V-band for turbo
Dodge Cummins starter
Hoses
Fuel lines
Various bolts/fasteners
Fired it up today bolted to a pallet in the garage - what a neat sound! Still have to plumb water lines to the radiator so I only ran it a few seconds but it was neat to hear! Video as I get time...
Don't know when I'm going to take the Dakota off the road and start the actual swap - still some things to work out on paper before I tear into it and I don't like the idea of being without my truck...
Plan is to use the stock transmission (AX-15) as long as it holds up - it's mostly an over the road truck so I expect it to do fine.
Fire away if you have questions. I'll take lots of pictures.
Its going to be sweet! Only thing im worried about is the ax-15 the 4bt throws out around 300lb of torque. If you are easy on it and dont put any mods on it you should be fine.
Last edited by dodgeramguy85; Apr 26, 2012 at 01:26 AM.
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Joined: Aug 2009
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From: port richey florida
according to http://www.cumminsdieselspecs.com/4bt.html it makes 265lb tq...
Surely it has to make more than 265. With them being used in bread trucks they had to be slow as hell!!
Last edited by dodgeramguy85; Apr 26, 2012 at 01:26 AM.
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Joined: Jun 2008
Posts: 3,300
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From: Plattsburgh, NY
I found 355.. http://en.wikipedia.org/wiki/Cummins_B_Series_engine
Surely it has to make more than 265. With them being used in bread trucks they had to be slow as hell!!
Surely it has to make more than 265. With them being used in bread trucks they had to be slow as hell!!
