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Registered
Join Date: Jul 2001
Location: Portland Oregon
Posts: 7,007
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It does look like aluminum.
Porsche did make a few 7R cases in aluminum for the 2.8 & 3.0 RSR engines so I'd look at the casting numbers on the sides (just below the oil return tubes) to see what those are.
Whats the engine's serial numbers & type numbers?
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