I'm sorry but there are no values like that mentioned in any MB documentation I have at home.
I think you should look for "Tabellenbuch 1972 - Typen W 100 / 107 / 114 / 115 / 116
= Mercedes Benz Technical Data Passenger Cars 1972 Manual
There are all data ever published about all the older engines and cars.
600 #796 (1967 US version)
300SEL 6.3 #1285 (1969 EURO version)
300SEL 6.3 #5346 (1971 US version project)