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Old 06-04-2018, 02:44 PM   #1
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Join Date: Jun 2018
Location: Fort Worth, TX
Posts: 1
1996 K1500 4.3 to 7.4 swap

I have a 1996 K1500 4.3 to 7.4 swap that is almost complete. I am just waiting on a new ECM to complete it. I have the 7.4 motor installed and found an engine bay wiring harness for it. It is a 5 speed so that took some doing. I have been thru this truck and want to make sure that I have not missed anything. Anybody have any ideas of what I should double check?
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Old 06-10-2018, 09:09 PM   #2
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Join Date: Jan 2011
Location: Stuart, Florida
Posts: 452
Re: 1996 K1500 4.3 to 7.4 swap

We're in the process of swapping a 75 350 in a 89 K1500 which has a worn out 350. We got it running today, however having fuel pump issues. Wish I could give you some solid advice , other than print some wiring diagrams and study them.
Good luck and maybe be more specific on any issues. May get you more help

Thanks, David
1970 CST LB Fleetside, 402 BB, PS, PB,AC
1968 Firebird 400 conv.
1965 Chris Craft 17' wood ski boat (SN #0001)
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