75ohm

To zinc or not to zinc - as in, if you could would you put stainless cam tower bolts on?

It's a presentation thing. Chrome/silver powdercoated camtower would look nice with stainless, no?

KuHL 951

Personally I go for the functional industrial strength look. Anytime I have to worry about underhood blemishes I feel I should be driving the car instead of worrying about the dust. Personally I prefer yellow-zinc bolts but that's me..

sharky47

Yellow zinc would be cool - stainless hardware is cool (I should know), but I wouldn't use it there.

Headhunter

Stainless bolts into aluminum head? You're asking for trouble. Trouble spelled Galvanic Corrosion.

KuHL 951

Unless those bolts are exposed to a water passage somewhere in the head there's no electrolyte to feed the corrosion. The bi-metallic couple between SS and aluminum will be no different than black oxide treated carbon steel studs which will corrode just from moisture in the air around the threads. A yellow zinc-dichromate steel bolt would still be the best choice as the two are closer on the galvanic scale.

sharky47

I've had SS exhaust studs in my car for a week now and they look GREAT!

Also sounds better now that we tig welded the crack around the exhaust pipe flange.......

75ohm

I appreciate the feedback and will continue observing the debate.

75ohm

Here's the deal... went to the local place in Tampa called Tyson bolt and supply. They have EVERYTHING. I got 15 m8x35 zinc bolts, with washers, and 20 m6x assorted with washers, all zinc...

Now normally this would cost a pretty hefty amount... and I've paid a lot for these in the past, upwards of 6 bucks or more a piece for the m8x35... but I got all of the above items for...

$12.52.

75ohm.

sharky47

I'll have to remember that - I have a 951 and a 944 race car to assemble over the winter.......

FRporscheman

Dude that's a great price! So you decided to use Zinc - I think it's important that there be some things that don't match the color of everything else. If everything is silverish, it looks like one blob of similar metal. The zinc will add a touch of componentization.

That's not a real word but whatever.

sharky47

I was impressedalized.

75ohm

The bolts actually look stainless -- I asked the folks and having a zinc bolt doesn't equate to having a yellowish tint. Of course, I will PM you on this thread after the parts are installed to show you...

Also, they confirmed that you would NOT want to have stainless on the head... so props to my man Headhunter... mixing metals. Sharky - not sure what that means with regard to the exhaust studs...

75ohm.

75ohm

Apologies about the phone camera pic... but this is what I'm talking about...

jgporsche

that is DAMN nice!

75ohm

I'd hope so my man - you did it.