68 z master cylinder

[fireZ]

What is the correct colour for a 1968 Z28 master cylinder. Black or cast Thanks

[lakeholme]

According to Jerry's book, page 57:
Master cylinder was natural cast.

[fireZ]

Thanks I have seen that and then I see pics of high end cars that have them painted black

[william]

There is debate on this. Vintage photos show masters painted black; the theory is the paint did not adhere well and quickly fell off. Current judging allows either finish.

[1968RSZ28]

I'm looking at the March 1967 issue of Car and Driver, their first test of the Z/28.  A black and white under the hood photo (page 38) shows the master cylinder in a natural cast color as compared to the black cowl plenum air cleaner, radiator, etc.

Paul

[fireZ]

Sounds like cast is the colour of choice for the master cyl. thanks for the help

[KurtS]

The masters were all painted black by the supplier. This has been confirmed by JohnZ.
It was cheap paint on a raw casting and it did not hold up.

Judging allows either, but they were black originally.

[jeff68]

The master cylinder on my original owner 68 L30/M20 was painted black.  It's good to know that I was correct painting it black again after restoration.