Hi all
Just a thought.
Here in South Africa we have a gasket making company called "Payon".
They can make, if needed for overskimmed cylinder heads, a thicker head gasket up to a max of 3mm thick.
How much would comp drop if this is done on a standard A12 motor that has a 9:1 comp as standard? Is this not a better and cheaper idea than fitting a spacer plate and sealant that will cause possible failure under boost applications?
I know of a mechanic that uses this method on the older box shape BMW's who's cylinder heads have been overskimmed.
Have'nt had gasket failures yet.