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Old 06-24-2009, 10:59 AM   #8
iluvmy72
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Join Date: Jan 2002
Location: Springville, UT, USA
Posts: 1,010
Re: TBI to Vortec Swap question

cinebarger.....tell us more about these adapters you got. And I have installed the 97 7.4 motor already into the 91. But it needs a wiring job from the ECM. I currently have the 700r4 hooked to the motor via a flex plate. But I'm considering tossing it and going with a 4L80E from that year to make it easier on the ECM. But then again I'm told all I need is a modified harness and a "lock-up" kit for the 700r4.
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