re:
" from SC it has a single piece of steel inserted into the head with two valve
seats cut into it"
Is that what's known as "figure eight" valve seats?
Bob
--
***************************************************************
Bob Spidell San Jose, CA bspidell@comcast.net
'67 Austin-Healey 3000 '56 Austin-Healey 100M
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-------------- Original message ----------------------
From: David Nock <healeydoc@sbcglobal.net>
> The two Alloy heads are different. The one Moss sells is from SC it
> has a single piece of steel inserted into the head with two valve
> seats cut into it. The DW head has two separate valve seats installed
> into the head. As for the port work I have not seen the SC head but
> the DW head has had extensive port work and the large mass in the
> ports that is blocking the air flow has been removed. They increase
> performance a lot they also help cooling, reduce weight, as well as
> decrease run on.
>
> We have installed many alloy heads and have lots of good responses to
> them. As well as since most cast heads have or will crack and the
> repairs to these heads usually fails then the alloy head is the best
> answer.
>
> The leaking head gasket problem will happen no matter what until you
> install a multi piece steel head gasket with hardened studs.
>
>
>
> David Nock
> British Car Specialists
> Stockton Ca 95205
> 209-948-8767
>
> www.britishcarspecialists.com
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