new chevy 5.3 - Off-Road Forums & Discussion Groups
IH Scout & Trucks Discussion of International Harvester, 4-Wheel Drive Truck and Scout Vehicles

 
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post #1 of (permalink) Old 10-14-2009, 04:49 PM Thread Starter
 
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new chevy 5.3

How difficult would it be to swap a 345 for a new chevy 5.3 w/ac, pwr steering, brakes all the goodies, 1979,1980 Scout auto trans.
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post #2 of (permalink) Old 10-27-2009, 10:49 AM
 
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You'll need the wiring harness computer (PCM ECM etc.) from the GM vehicle. Also you'll need to fab up a set of engine mounts as well as getting the adapter plate for the trans to match up with the new motor. Not sure if there is one available for it yet, you'll have to wait for someone with a better know-how to respond to that part.

The more you have from the "donor vehicle" the better off you are. Been here done this with my conversion from an auto Chevy Caprice/Impala to a 6 speed manual. Needed not only the pedals but all the wiring, switches and relays in order to get the rear lockout, neutral safety switch, back up lites and the likes to work. Had to re-progam the PCM to stop looking for feedback from the trans so I could actually move the car.

Good luck hope you have success.
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