LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Difference between 93 and 94 ICM/Coil

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Old 09-27-2004, 10:46 PM
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Difference between 93 and 94 ICM/Coil

Whats the difference between the two? They're two different part numbers, but they both fit the same and connect the same? Need insight here ASAP
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Old 09-28-2004, 12:01 AM
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Re: Difference between 93 and 94 ICM/Coil

Don't know. <shrug>
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Old 09-28-2004, 05:02 AM
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Re: Difference between 93 and 94 ICM/Coil

I don't believe there's a change in the coil/icm setup until something like 95 or 96.
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Old 09-28-2004, 07:47 AM
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Re: Difference between 93 and 94 ICM/Coil

Originally Posted by Fastbird93
I don't believe there's a change in the coil/icm setup until something like 95 or 96.
Spinner is correct that the 93 has different part numbers, though they look the same. Coils changed physically from 2 connectors to one in 1996.

Factory coils and ICMs are split:
93
94-95
96-97

IMO, I don't think there would be any problem interchanging the 93 with 94-95.
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Old 09-28-2004, 02:37 PM
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Re: Difference between 93 and 94 ICM/Coil

I wouldnt think so. I DID notice that 93s are bolted and not studded towards the fender, and dont have two of the grounds the later coil/icm does, though I dont know if thats the reason for the PN change
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