[Healeys] Intake manifold finishes

[Bruce Steele]

I'm interested in my options for finishing my intake manifold.  It was
powder coated clear 12 years ago, and the coating has yellowed at the head
flanges from heat, and over the years what look like rust spots have
developed in the powder coat, which is odd since the manifold is cast
aluminum (see the attached photo).

 

I'd prefer to preserve the natural cast aluminum color, and I'm not a big
fan of the chrome or polished look on the intake (my apologies to all you
out there with nice shiny intake manifolds-it's just not my taste).  I had
the exhaust manifold Jet-Hot coated in a cast iron gray 12 years ago, and
they still look great.  So, Jet-Hot coating the intake is one option, but
the color samples they sent me of their lightest grays are all at best a
medium gray; all considerably darker than their online color catalogue
indicates.  I'm going to call them Monday, but I'm not sure they have a
coating light enough.

 

I also don't want to paint it, as I know that won't hold up long term.  I'm
curious about blasting the clear powder coat off and leaving the manifold
uncoated.  How does the "naked" aluminum hold up to the heat?  What have
others done?  Your experience is appreciated.

 

Bruce Steele

Brea, CA

1960 BN7

 

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