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Old 06-04-2019, 02:22 PM   #1
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Join Date: Apr 2001
Location: DALLAS,TX
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Diesel 4l80e to Squarebody 7.4l/TBI swap?

I understand the OBS style HD trucks came w/stand alone trans controllers on the diesel equipped 1-ton trucks through about /95.

Is this correct?
What would it take to transplant the 4l80e from a /93 6.5 1-ton behind the 7.4l TBI BBC powering my Squarebody CC Dually??

Experienced answers would be appreciated.
89CCDually-Driver/Tow Truck
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Building a small, high rpm engine
with the perfect bore, stroke and rod ratio is very impressive...
like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar.

Cubic inches is like Indiana Jones with a cheap pistol....
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Old 06-05-2019, 06:13 AM   #2
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Location: Binghamton, NY
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Re: Diesel 4l80e to Squarebody 7.4l/TBI swap?

IIRC 4l80s are the same between trucks n motors, save for the converter. This is what I’ve read and have been told. Shifting/controlling what not is done by the ECM....
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