69Z Holley carb studs

[L78 steve]

Hope this doesn't get out to the ebay hawks. I'll wont be able to afford them.

[Bryan302]

Steve, yes it seems that unfortunately, we can't talk about anything anymore without getting taken advantage of.  At least, maybe some will become available to make a deal.

Bryan

[zman1969]

anyone have measurements on these? I have a bunch in my parts bin I'd like to verify or if you would rather PM info I can understand
thanks guys

[Edgemontvillage]

As usual, thought provoking topics on CRG -

I had to go dig out the Z intake, off the engine and stored since '80, car was bought in '73 - thank goodness I never changed them, They actually have remnants of dichromate where the carb base protected them - all four.

Regards,
Steve

Steve, I removed the carb from my 2B Norwood 69 RS Z/28 project and the studs look the same as yours with clear evidence of gold dichromate plating.

[68camaroz28]

Been checking and our limited review & what others have shown indicates there were two styles, neither of which are what are sold by vendors stating "correct"!
It seems this style (again, small amount checked) if found quite often and observed in both Big Block and Small Block intakes. This intake/carb are from a Corvette 65 327.


And a set I was going to use for our 68Z as our intakes originals were taken out at some time which might have been when intake was re-skinned (tumbled/vibratory).

[1968 Z28]

Chick.....my original ones have evidence of Gold Dichromate coloring.  The upper thread coloring is now gone but if you look on the bottom of the stud (the section that was screwed in to the manifold) the gold coloring is still there.  Don't have time at present to get you a photo (got an eye doctor appointment coming up today) but will try later on this afternoon.

[69Z28-RS]

Essentially all of the 'known original' 69 Holley Carb Studs posted in this thread have shown the dichromate coloring.. doesn't seem to be much doubt about that.

[68camaroz28]

Essentially all of the 'known original' 69 Holley Carb Studs posted in this thread have shown the dichromate coloring.. doesn't seem to be much doubt about that.

The pictures I took and posted do not look like gold dichromate or yellow zinc visually in person. Mike posted a picture of a NOS 69 intake purchased in 69 and they appeared to be same as I have and posted but granted not sure where or what mine came off and maybe it had to do with service replacement. It seems most of the communication concerning gold dichromate appears where the carb base was so could it be something on how the stud was installed??? I do believe it seems there have been two very similar machined styles so far. A bare 66 BBC intake with no carb on it a friend has showed the same small step stud as most here but appeared to have no yellow or gold look and I would say neither the orange 69 Z/28 (Skip) or 68Z survivors appear to be gold dichromate. Here is a picture of our carb stud on our purchased new March69 built L78 Nova. Interesting subject as one would think we would have this question well in hand...