I replaced the head on my early '74 B a few years ago with an 'unleaded'
rebuilt head. It cost me around $350.00 if I remember correctly. I received
the head in the post, stripped what I needed to off of my original and sent
it back to the outfit as a core. It's still running strong today.
Craig Wiper
early '74B
craigw@sonic.net
http://www.sonic.net/~craigw
http://www.mp3.com/artists/26/tung_n_gruve.html
----- Original Message -----
From: Dodd, Kelvin <doddk@mossmotors.com>
To: <bburrows@webtv.net>
Cc: <mgs@autox.team.net>
Sent: Thursday, June 17, 1999 9:00 AM
Subject: RE: Unleaded head in 1974?
> Betty:
>
> Non of the MGs' had hardened valve seats installed from the factory.
> The regular exhaust valves were also deemed suitable for unleaded use.
>
> Unfortunately given the poor maintenance most US cars received, the
> seats and valves were only good for about 40,000 miles on unleaded fuel.
>
> Hardened seats and stellite valves can be retrofitted, and may
> already have. Chances are the B you are looking at has had some form of
> head work already done, the question is, how much and what?
>
> Kelvin.
>
>
>
> > -----Original Message-----
> > From: bburrows@webtv.net [mailto:bburrows@webtv.net]
> > Sent: Thursday, June 17, 1999 5:25 AM
> > To: mgs@autox.team.net
> > Subject: Unleaded head in 1974?
> >
> >
> > I am currently looking at a 1974 MGB-GT. This car is a CB
> > and, judging
> > by the build month, must be one of the last CB cars made before the
> > switchover to RB cars. The car is original.
> >
> > Based on this information, does anyone know if this car has
> > an unleaded
> > head, which is to ask, does it have hard valve seats?
> >
> > Many thanks.
> >
> > Betty
> >
>
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