R56 R56 valve seal replace or head swap
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A new head has to be a pretty pricey item. To remove the head and install a new one requires the exhaust and intake be removed and there's cam timing to fuss with, that's a lot of work and the work has to be done right or you have a new head with a failed gasket or worse.
A new head though brings with it fresh valves, springs, and well just fresh everything (although the new head might not come with new cams). If the old head valve hardware (besides just the valve seals) is showing its age a new head brings a lot of goodness to the engine.
If the head is otherwise in good shape I vote for new valve seals. You sure the valve stems and valve guide clearances are good?
A new head though brings with it fresh valves, springs, and well just fresh everything (although the new head might not come with new cams). If the old head valve hardware (besides just the valve seals) is showing its age a new head brings a lot of goodness to the engine.
If the head is otherwise in good shape I vote for new valve seals. You sure the valve stems and valve guide clearances are good?
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Jerry Phan
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