Originally posted by RallyBob
I assume by 'dead soft' you mean annealed copper? I had some big-bore 97mm Opel head gaskets made from copper a few years back, but I had to anneal them myself in my 'shop' oven. I had a water-jet cutting company make them, as no one could cut them via laser or plasma cutter.....the copper is too great a heat-sink.
I had about 30 gaskets made though.....which cut down on my programming/setup time costs a bit by spreading it out over multiple pieces.
Sorry if my answer doesn't help you, but I imagine with some patience you could make them by hand. IIRC, the 60 degree V6 has a round exhaust port (at least the iron heads), so with an appropriately sized hole-saw, a Unibit, and some aviation snips, I imagine in an hour or so you could cut out a set.
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Bob,
Dead-soft means annealed as far as I know ( I was simply told to ask for dead-soft copper).
I never thought about making them myself, but you are correct- with round ports it should not be that hard.
As always thanks for your insights,
Nathan Acree
Albuquerque New Mexico