Hmm, that one isn't on that chart, but here are the numbers from
Bruce Anderson's book.
Type# 911/85
Year 1977
Characteristics 2.7 911S USA 50 state engine
Displacement bore x stroke in mm 90x70.4, 2687cc
Valve size in mm I 46 E 40
Port size in mm I 35, E 35
Compression Power in DIN horsepower 8.5:1 165hp @ 5800rpm
Peak Torque 176lb/ft @ 4000 rpm
Hope this helps.
Tom