Re: unleaded fuel..72B head

["J. Knight" <taoistjd@ix.netcom.com>]

Chris Jung wrote:

>   Also, does anyone know if unleaded fuel is
> particularly harmful for a '72 B head?

It would be advised to have hardended valve seats and guides installed 
when rebuilding a leaded motor.  

I've used lead sub. until I've performed a rebuild.  I never tempted 
fate.  Older motors used the lead in the gas as an extra lubericant for 
the valves.



John Knight
'73 MGB (undergoing restoration)
"working on Brit cars is ALMOST as much fun as driving"