mfg Posted January 30, 2015 Report Share Posted January 30, 2015 The valve sizes (dimensions) used in the Studebaker Avanti R1 & R2 engines were actually first used by Studebaker in 1956.....True? Link to comment Share on other sites More sharing options...
brad Posted January 31, 2015 Report Share Posted January 31, 2015 (edited) No, 55 was the first year of the larger ports and valves. Edited January 31, 2015 by brad Link to comment Share on other sites More sharing options...
mfg Posted January 31, 2015 Author Report Share Posted January 31, 2015 That's it!....1955 was the first year...Answer...FALSE Link to comment Share on other sites More sharing options...
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