Schumann Sales in Iowa, as Charlie mentioned, has new H.D. ones apparently. You'll have to search a phone #, he's not on the internet as far as I know.
Mummert in El Cajon CA  was stocking std & H.D. ones at one time... The H.D. ones have oiling grooves cut into them, if I recall..


Paul

Vern does not use the Internet for his business correspondence or marketing.  The last heavy wall rocker arm shafts I purchased from him in 2015 were $58.00 per set.  These are made of 1018 steel, are heat treated to improve resistance to wear, and have oil slots to improve oil dispersion over the shaft and rocker arm bore surfaces.

Schumann's Sales & Service Inc.
227 West Mayne Street
P.O. Box 128
Blue Grass, IA  52726

phone  -  563-381-2416
Fax  -  563-381-2409

Hope this helps! 


NoShortcuts
a.k.a. Charlie Brown
near Syracuse, New York