EX valves

I had a set of s/s sent over from nicks forsa in washinton must say they are primo quality.... you could refit heads as is and not have any dramas for yrs to come or next time you drive it could be valve salad for lunch if your heads are off it would be a no brainier not to change them try nicksforzaferrari.com good luck

 

OK, ok let's see.
Buy them from SiValves.
$ 800.00

or, worry and wine the rest of your freakin life.(whew)

Rant over,
Edwardo

( Need some cheese too.)

 

SI valves are crap.

 

why this?

I think the question is not so stupid.
In case you bought and older 308 which was equiped with sodium-filled valves and you like to be sure to replace them, it's a fair question how to recognise one from trhe other. Maybe a former owner already made the switch making it useless to switch them again.
For some people $800 is still quite some money

 

New steel valves with sodium and new SS valves without will be indistinguishable in a photo.

I already told you, factory valves are steel and will be easily picked up by a magnet and aftermarket SS valves will not.

Call Ferrea valves and get a set of theirs. The know exactly what a Ferrari 308 valve is and make a very high quality product.

 

I understand if a sodium valve rolls off the workbench and hits the floor it shatters....

Try that....if it bounces a few times it's been replaced with stainless at some point????

^%*$ it just break one on purpose, if something runs out that looks like Peruvian Marching Powder, replace them.....

 

Surely if original, it's got to have carbon build up on it that looks like a furnace.......

Thanks for the tip on replacement manufacturers...

 

BigTex, why don't you and I go in for a group buy on the Ferrea valves?

Seriously..
G

 

Me too.

They are only, ,, $ 55 - 60 each... how low can they go.......?
Also would like Ti locks and retainers.

Edwardo

 

If you go to Bert's thread, http://ferrarichat.com/forum/showthread.php?t=208114&page=2 , he has some close and personal pictures of the sodium valves. He even cut one down the middle.

 

Because I already have them...it's just such a PITA to stop driving around and put them in.....

 

I was actually serious about dropping or cutting one, no bullsheeit, or xray it to determine 'hollow or solid'.

If it's solid and non magnetic, it's stainless and has already been upgraded.

Rifledriver, come back....the sodium ones have a visible weld at the head, where the two pieces were assembled after filling?

 

Wait!! Dont take me from ME!!

I just know what I was taught as a lil' lad, from John Vallindingham (deceased) and he would never reuse valves that were sodium......

PM Dave Helms if Rifledriver doens't come back with a definitative method of identification.....IIRC, the point of failure is usually the weld 'giving up', right below the head....

I suppose NEW sodium valves would be okay, lasting another 30 years, but stainless or titanium are modern improvements....

 

As they said of Wolgang Von Trips, "he had the mechanical aptitude of a dachsand.."

That's me.....

 

Tom, it's on post #111 of that page.

 

Yes, but we learned it back on post #7 when Rifledriver said to use a magnet.

 

There is nothing ambiguous in Rifledriver's answer: SS valves won't be picked up with a magnet, any steel valve (sodium filled or not) will. No ah's or boo's about that. Why ask someone to give the same conclusive answer 3 times? The same answer was given only a few days ago in another thread, also by Brian (Rifledriver).

 

I agree Ferrea valves are top drawer and the way to go, but why do you say Si valves are crap?

Poor material? bad grinds? valve head profile? Tolerances? Concentricity?

Doug

 

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