Would like reccos from this board on a place to replace the e36 M3 valve retainers with the reinforced retainers. This is my son's vehicle.
I've done some research and while there are those that say you have to pull the head to do it, others say definitely not. My gut feeling, after reading all of the write-ups, is: a mechanic with experience probably doesn't have to pull the head.
All input is greatly appreciated for this expensive, preventive maintenance.
TIA,
Ken
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