Valve seats

[Greg Hermann]

>I have a cast iron head, Ford V6 Essex, which does not have valve seat
>inserts.  It
>has to date been very reliable, running on a Carb and ECU ignition (home made).
>Here in the UK we have just (1st Jan 2000) had leaded fuel banned, so I am
>concerned as to the potential problems. I've heard so much conflicting
>advice about
>un-leaded fuel and valve seat inserts. Does anyone have any real experience of
>running without lead on a tuned motor?

How late a model is this engine?? Factories have gone, in some more recent
cases, to induction hardening the seat area in iron heads. If these heads
had this done at the factory, don't worry about it.

Greg


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