3B water manifold/head info requested

Bernie Benz b.m.benz at prodigy.net
Mon Oct 14 13:35:41 EDT 2002


I have a loose 3B water outlet manifold, 034 121 193A, that is destined to
go into my 7A upgraded to 3B externals project, that I could loan to you for
a short time to use as a pattern.  Adapting the 7A head to accept it would
require boring the additional 3 20mm water passage holes and their
respective single tapped mounting holes for each.  The additional water
passage holes are O-ring sealed with the O-ring positioned on the mating
manifold projections fitting into the head bores, so will only require a
straight thru bore.  This water manifold would interfer with the 7A intake
manifold, why it is not used thereon.


> From: <auditude at cox.net>
> Date: Mon, 14 Oct 2002 12:06:13 -0400
> To: 200q20v at audifans.com
> Subject: 3B water manifold/head info requested
> Hello,
> I would like to find out as much as I can about the water manifold on a 3B
> head.  Does anyone have any dimensions or pictures of the manifold and the
> ports in the head?
> I am thinking of converting a 7A head to have 4 water intake ports like the 3B
> head.  Currently it has one, and people say that the (main/only) difference is
> that the 3B head has ports for the water manifold.
> I have decided that I don't have to modify the head to actually use the
> factory manifold.  I can probably get away with machining some port and
> threading in some aftermarket fittings and create an external manifold that
> would do the same thing.  I would just need to understand where the underlying
> water passages are.
> If I go the path of fitting a factory 3B water manifold to the head, then this
> information could be used for other 3B owners wanting to be able to use the
> more plentiful 7A heads for repairs or upgrades.
> So, any help would be appreciated.
> I doubt anyone might have one, but if there are any junk 3B heads around that
> I could borrow or have to take measurements, that'd be great.  :-)
> Thanks,
> Ken
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