mfg Posted May 9, 2020 Report Share Posted May 9, 2020 Studebaker engineers decreased oiling to the rocker shaft assemblies in Studebaker Avanti "R" engines by reducing the oil entrance hole in rocker shaft from 5/16" to .......?...... 1) 1/4".......2) 3/16".....or......3) 3/32" Link to comment Share on other sites More sharing options...
studegary Posted May 9, 2020 Report Share Posted May 9, 2020 58 minutes ago, mfg said: Studebaker engineers decreased oiling to the rocker shaft assemblies in Studebaker Avanti "R" engines by reducing the oil entrance hole in rocker shaft from 5/16" to .......?...... 1) 1/4".......2) 3/16".....or......3) 3/32" 1) 1/4" Link to comment Share on other sites More sharing options...
mfg Posted May 9, 2020 Author Report Share Posted May 9, 2020 3 hours ago, studegary said: 1) 1/4" Sorry, 1/4" is incorrect. Any other thoughts here? Link to comment Share on other sites More sharing options...
r1lark Posted May 9, 2020 Report Share Posted May 9, 2020 3/32".......and wasn't this a change to not only the R series engines, but also the 259 and 289? Link to comment Share on other sites More sharing options...
mfg Posted May 9, 2020 Author Report Share Posted May 9, 2020 3 hours ago, r1lark said: 3/32".......and wasn't this a change to not only the R series engines, but also the 259 and 289? And you are CORRECT!....I agree this was done to all late Stude V8's...brought on, of course, thanks to "R' engine performance development! Link to comment Share on other sites More sharing options...
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