Seen both mentioned in the past, evolution of the cars might have ran them out of spares towards the end, not all GpA engines got the Magnesium pan either.
Can hope all you like experience here has shown me that isn't always the case ;)
Never seen bigger valves mentioned only better material but that doesn't mean they aren't bigger, never had one here to check for myself,
^^ Does he mention only matching the intake?
It's common knowledge if you know, the potential for the OP to buy what might have been an rare expensive head and trash it's performance is there if he just blindly followed this guys "suggestion"
LOL'd @ your new word.
Fine on the intake side but hurts performance on the exhaust side as you lose the reversion dam.
Hence the :nono: "Conventional" knowledge doesn't always work on a 7M as you'd expect and people need to keep this in mind before "suggesting" a course of action that could ruin a head if followed...
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