You'll have to check if the bores wear could cope with higher compression rate.
do leak down test and after you strip the head
pour into the bores fuel and watch the level decreasing rate .

then if all went fine ,since the 6's engine are bi-metal and using MLS gasket the quality of
the surface roughness lies in the range of 8-12 RA,
so you'll have to search a workshop equipped with PCD tooling to achieve this surface roughness.

PUG1OFF have this tooling.
http://pug1.t83.net/

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French military victories?
Did you mean French military defeats?