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Discussion Starter · #1 ·
I have a 96 Impy with the factory LT1 intake manifold. The part number cast into the passenger side of the intake is 12552138. I also have a powder coated LT1 intake manifold that I bought from someone off of this forum over 2 years ago to save for a "rainy day". The part number cast into this intake manifold is 10108630.

Can someone tell me what the difference between these part numbers are? The "rainy day" has come and I am starting an engine project. Before I send the intake to be opened up for a 58mm throttle body and ported for the heads, I'd like a sanity check that this intake is interchangeable with the one already on my car.

Thanks for your help.
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