Trying to find some oem valves and rocker arms when I came across these
http://cgi.ebay.com/ebaymotors...ZWDVW

How do other companie's valves like skunk, omni, and supertech differ from cheaper priced valves such as these? If you're gonna get a valve job to check for concentric valves and proper installed height, would these valves be safe to run? What kind of questions should I ask the seller? What kind of allow, etc?

 

first of all, what's wrong with your stock valves? bent?

 

$79?

If something sounds too good then it usually is.

I wouldnt trust them simply because I have never heard of them.

Stock valves are very strong, btw

 

Yup, I got a spare head that I'm rebuilding, 4 bent stock valves, that's why I was looking for some stock ones or some supertech, omni, etc, and came across those. I have also used the swirl polished valves from "SI Valves" in southern cali, and they were really nice valves also.

 

You know better than to cheap out on the internals. I'd rather not risk it but if you're willing to take a chance cause of a "good deal" then try em out and tell us what happens

 

Concentric check?


Please, someon explain this procedure to ensure proper concentricity.


Modified by FST GSR 1 at 6:19 AM 5/27/2008

 

http://www.stockcarracing.com/....html

 

I wouldnt do it.

 

I have seen that link used before...

Concentricity is a feature control used against itself in RFS(regardless of feature size) form. It simply implies the theoretical axis of the feature zone coincides with the datum axis within a specified tolerance. My question to you is this, if concentricity is a condition where all axes of a feature's differnet cylindrical surfaces coincide within a specified zone, how do you expect that to be checked in relation to installed height or valve to seat or am I reading your post incorrectly?

 

What I was asking is if some less expensive brands are out of spec, perhaps non-concentric or the entire valve did not form a good seat because of poor design or whatever the reason, would a valve job correct that?

 

No.

 

No...dont mess with it.