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I'm going to guess yes but want to come here for confirmation. Both harnesses are OBD1, both LT1 and both 9c1. I ask because my 94 wiring is hacked up and brittle, things snapping if I touch it at all. I have a spare 95 LT1 9c1 harness though. Interchangeable?
 

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There may be minor differences. The transmission was some bastard setup that required an extra wire in it.
May be other differences too. Only way to know for sure is to look at a HELMS manual that covers the wiring of the 94 and 95 to see what differences there were.
 

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The biggest differences that will affect drivability will be the transmission, and ABS wiring.
 
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This is not a one for one swap. I just used a 94 harness to rebuild my 95. The trans will require the addition of a wire and the abs module wiring will need to be saved from the 95 and swapped into the 94. I ended up using the best parts of both harnesses to make one good one.

-Brian
 
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