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Ford's old ancient tech I6 engines had integral exhaust manifolds cast with the head. I wonder if they will actually go to a cast iron head as well. Wouldn't it be ironic to see the return to what many may see as old tech when they may have learned that it may actually end up being better tech. With iron blocks and heads heat losses would be minimised at the source, while heat retention would be maximised.
It will be interesting to see what they actually do that is truly new.
regards
Mech
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