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91 7.3 idi engine swap

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Old Nov 27, 2016 | 10:08 PM
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91 7.3 idi engine swap

Doing a engine swap a 91 7.3 idi into a 94. 94 has a 460 with e4od. 7.3 has E4od as well. My question is will the engine wiring/harness b compatible with 94 idi dash cluster or will I have to use 91 dash cluster?
 
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Old Nov 28, 2016 | 01:32 PM
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Nothing will be compatible. You'll have to use every single bit of wiring from the donor truck if you want the E4OD to shift.

Your best course of action would be to find a '92-'93 IDI transmission computer if you want to alter the least amount of wires.
 
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Old Nov 28, 2016 | 04:57 PM
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I have transmission And all components from doner truck. A 94 7.3 idi dash cluster will not work with 91 idi harness correct?
 
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Old Nov 28, 2016 | 06:07 PM
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Like I said, they're completely different. The '94 Speedometer is also electronic. There are no provisions for the speedo cable drive, so you'll need to figure that one out.
 
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Old Nov 29, 2016 | 07:43 AM
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I think your best bet would be to source a 92-94 IDI truck for the wiring and such. Only the engine and trans from the 91 are useable here, the electronics need to come from 92-94 IDI truck.
 
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