Polishing A Stocker Intake

[SSGT Mustang]

I'm pretty sure that the answer is no, but I'll ask anyway. Can the outside of an aluminum stocker intake be polished, so long as the runners, plenum, etc. are not modified?

I know that they can be painted. Polishing would look really nice though.

[69Cobra]

I've wondered the same thing.

[Geerhead55]

You would think it shouldn't matter, as long as you can prove it hasn't been "polished" inside, should a tech official ask you to remove it. My 2 cents.
Danny Durham

[Chipper Chapman]

I believe you're not even supposed to remove any casting flash somewhere in the book, so my take would be not allowed.

[SSGT Mustang]

Originally Posted by Geerhead55

You would think it shouldn't matter, as long as you can prove it hasn't been "polished" inside, should a tech official ask you to remove it. My 2 cents.
Danny Durham

I agree. Also, as long as you don't remove or modify the part number or any other identifiers. Just polishing it so it looks nice (like using chrome or polished valve covers, timing covers, etc.).

[John Scott]

"Must retain the unaltered stock manifold, consistent with year and
engine horsepower claimed. Grinding, sandblasting, or any other
modification to manifold prohibited. Any film coating inside
manifold prohibited. Runners and plenum must retain OEM
appearance. Final acceptance at the discretion of the NHRA
Technical Services Department."

I'm with Chipper. I interpret the rule to mean that polishing would not be allowed.

John

[HandOverFist]

Considering the intent of the rule I doubt one would have a problem with it.