[DeTomaso] Bronze or Steel Valve Guides

[Charles Engles]

Dear Tom,



            I can't speak to the advantages/disadvantages of brass (bronze?)
versus steel valve guides.   Over the last ten years all of my Cleveland
heads have had bronze (brass?) valve guides placed by the machine shop.   I
can't really recall ever hearing about steel valve guides.   A real expert
will have to address your question.   I am interested in learning about
Steel vs. Brass (Bronze?) valve guides, too.


                  Warmest regards,  Chuck Engles



-----Original Message-----
From: detomaso-bounces at realbig.com [mailto:detomaso-bounces at realbig.com] On
Behalf Of Tom Borcich
Sent: Sunday, July 18, 2010 4:48 PM
To: Pantera REALBIG forum
Subject: [DeTomaso] Bronze or Steel Valve Guides

I'm redoing my heads and need any suggestions on pros and cons of bronze vs.
steel valve guides? 
I have closed chamber 4V heads. I've read that bronze guides may not be as
durable and seize up (maybe because they didn't have the right clearance to
start with)? My cam will not have lift of more than .580. 
The exhaust guides were already done (not my original heads) with steel and
I'm not sure if they should be redone.

Tom