'06 Quicksilver Z06

Can someone tell me what Ferrea Super Alloy valves are made of?

I have found a few examples of people running these also in lieu of the stock hollow stemmed valves.

Thanks

vertC6

Page 14

http://www.ferrea.com/Ferrea_2012_Catalog.pdf

vertC6

There new hollow stem is supposed to be in any day now, weight is quoted around 89 grams

Z06_505

On page 6 is a material listing: http://www.ferrea.com/Ferrea_2012_Catalog.pdf

ConfusedGarage

I only have 3,000 miles on my new setup with bronze guides (original guides were in spec despite 4 yrs with a cam fwiw), new OEM exhaust valves and katech ti mo intake valves. I will continue to rack up the miles however, and report everything on here.

ConfusedGarage

That is being nearsighted looking at the result of worn guides causing a concentricity issue which is likely the key issue, nothing has proven to be wrong with the valve itself. I work at an OEM, I see the dollars flow through R&D and the incredible testing they do, they have a ton more knowledge than anyone doing 10-20 head jobs per year. There is a reason why the OEMs go with hollow/sodium filled vs. SS. It would be fair to say any engine pushing the limit with power/reliability is more of a gamble than a low output commuter car, that I'd agree with.

619grappler

WCCH Stage II heads w/ CHE bronze guides and SS exhaust valves. I've only put about 1k miles on it since the heads/cam install last month.

FSTFRC

I just changed mine to Solid Stainless Steel, Lunati dual springs, and bronze guides. Mileage to low to post. I did a cylinder head exchange similar to what you did, I'll find out in a couple of weeks what the specs were on my stock guides.

Z06_505

21-4N stainless steel exhaust valves, stock intake, bronze bushings.

Car is 100% tracked. Only 100 miles so far.

Dirty Howie

Well he tracks his car too. I guess Katech didn't push him too hard to use the OEM valves they usually recommend


DH

VetteVinnie

Neither the intake nor the exhaust guides were showing signs of wear in my heads. Not surprising if you look at that sticky on the top of the forum indicating only a small percentage of heads had a defect in the guides.

I did my Stage IV conversion around 11K miles, and that included the head work and replacing the exhaust valves, but no guide replacement. I had the cam in it already with the stock valves for about 3K miles before that. When I de-tuned the car late last year (different cam, different clutch, ceramic coated the headers), car had about 22K miles on it, so I ran roughly 11K miles with the stock guides and the Ferrea valves. I have about 3K miles on this new setup so far.

chadyellowz06

ss valves on new rhs...at 9k no issues I will be checking my guides in a few weeks.. street driven and drag raced miles

RichieRichZ06

Just to clarify.... Katech built our 427, but I had West Coast do the heads because our stock ones were paper weights after the blow up. Jason shipped us the engine, we bolted the heads on it, along with all of the other finishing parts and installed it into the car.

To be completely honest, I never told Richard @ WCCH specifically what to do other than "do everything to them that you normally do." He knew that Katech was building the engine and I shouldn't have assumed that he would do stock valves. He installed solid SS valves when he built them and I didn't know that until after they were shipped back to me and I saw the receipt. However, Jason did yell at me a little for doing that.

In either case, I am not worried about the engine at all and we've had lot's of trouble free fun with it.

RICH

GIO-305

Yes I had Rev SS with my heads, cam & nitrous build. I don't have logged miles because I sold the set up and car once it was done.

azZ06Mike

add me to the list

0Cunningham Motorsports

if you track the car, we feel ss valves and guides (if out of spec) with the appropriate spring is a wise option... not going to argue about it, we have simply seen way too many failures on bone stock cars....... take it for what its worth...

'06 Quicksilver Z06

Glad a vendor chime in Ryne.

How many cars have you all done with Solid stainless Valves up until now?

Thanks.

0Cunningham Motorsports

without going into my records and looking, around 30ish .... that is a lot considering we are a small shop

C5Lion

I had my heads reworked at about 30k and 30 track events. New SS values on exhaust and new bronze guides for all valves. Still using stock intake valves. New springs throughout. Guide wear I was told was bad and way out of spec but don't have any numbers. Parts are sitting in my garage and maybe at some point I will measure them.

phxcobra

WCCH worked my heads over. SS exhaust with bronze guides. A couple intake valves replaced too due to wear. Big cam, Manley Nextel springs and 13:1 comp with e85. Not many street miles since then but about 7 HPDEs in advanced groups-