Print Page - Alum duel quad Manifold

Title: Alum duel quad Manifold
Post by: csheff on March 25, 2026, 01:47:47 PM

Hi,
What finish is correct for the manifold (500) bolts. I seen two types blackish finish amk from NPD and silver finish directly from amk both stating for 67 GT-500. Any help guys?

Title: Re: Alum duel quad Manifold
Post by: 98SVT - was 06GT on March 25, 2026, 03:32:59 PM

No finish. Natural as cast. Dry Ice blasting is the best method it doesn't effect the original surface.

https://youtu.be/QGgcaMO_PZw?t=54

https://www.youtube.com/watch?v=J3YikY0K25c

Title: Re: Alum duel quad Manifold
Post by: Bob Gaines on March 25, 2026, 07:00:57 PM

Quote from: csheff on March 25, 2026, 01:47:47 PMHi,
What finish is correct for the manifold (500) I seen two types blackish finish amk from NPD and silver finish directly from amk both stating for 67 GT-500. Any help guys?

If you are speaking of the intake bolts then they were zinc silver originally. The factory cast iron intake bolts are dark gray which was is phosphate and oil.

Title: Re: Alum duel quad Manifold bolts
Post by: csheff on March 27, 2026, 11:08:13 AM

Thanks Bob & 98svt

SAAC Forum

The Cars => 1967 Shelby GT350/500 => Topic started by: csheff on March 25, 2026, 01:47:47 PM