As per this article all VW engines (which are type IV engines are) were built with hardened valve seats from 1966 forward. Can anyone confirm this is true because I have been running lead substitute in my 914 to ensure there is some cushion for the valves.
http://www.vw-resource.com/leaded.html
Full Version: lead substitute
QUOTE(RonnieJ @ Oct 15 2013, 08:04 AM) 
As per this article all VW engines (which are type IV engines are) were built with hardened valve seats from 1966 forward. Can anyone confirm this is true because I have been running lead substitute in my 914 to ensure there is some cushion for the valves.
http://www.vw-resource.com/leaded.html
Aluminum heads with steel seats. No need for lead additives. FWIW, most Porsches and VWs had steel valve seats, except for some earlyish 356s with bronze intake seats.
The Cap'n
This is a "lo-fi" version of our main content. To view the full version with more information, formatting and images, please click here.