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>Why not use new all ALUMINUM block from VW Mexico, really nice pure
>aluminum, tap it for full flow be as good as any type 2/4
These cases are imported here from a
company called Autolinea based in Brazil. The cases
the Mexican VW dealers are selling, is this very same
case. These cases are relativly new and several
problems have been noted with them such as porosity
in the sand casting that, in a few cases (pun intended)
has shown oil bleeding from the oil passagways into
the interior of the case, predominantly around the
lifter bore bosses. Also, there have been machining
inaccuracies in areas such as the pressure releif
valve bores and the distributor drive bore. While
these are easily repairable by a machine shop, I
hate the thought of plunking down $300.00 for a case
that will need another $100.00 (at least) worth of
machine work to be as good as the OEM AS41 case, that
is made and sold by VW. Like I said, these problems
were noted in the first shipment of cases that were
sold here in the US and maybe Autolinea will correct
these issues very soon. In short, the strength of
the aluminum case is not worth the chance you take
that maybe you will get one that you can use, out of
the box. Now if these problems were not present, I
would certainly use one over the stock Magnesium case.
Marc
1967 Fastback
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