[Vwdiesel] NA exhaust valves for a TD head?
petersenrudy at hotmail.com
Thu Apr 7 13:21:24 EDT 2005
Do you know how to identify these heads?
> -----Original Message-----
> From: vwdiesel-bounces at vwfans.com
> [mailto:vwdiesel-bounces at vwfans.com] On Behalf Of Tim Hicks
> Sent: Thursday, April 07, 2005 10:12 AM
> To: vwdiesel at vwfans.com
> Subject: [Vwdiesel] NA exhaust valves for a TD head?
> The non-turbo head is cast in aluminum-alloy. The Turbo has a
> stronger, sodium-injected alloy. Different materials are also
> used for the Turbo's valve seats, the pre-chambers and the
> turbos valves made of a special metal called Resistal and
> the exhaust valves are reinforced by a plasma spray during
> manufacturing process.
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