98 Challenger 1800 - What is stock impeller pitch?

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does anybody know?? If so, where did your data come from??

Everything I have says "progressive pitch stainless steel"

 

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anybody know the answer to this?

 

[robin savell lloyd]

dave at impros should 909 370-4900 :cheers:

 

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Thanks. Those guys know thier chit.

17/22 is stock pitch.