Denny Graham says, The correct rocker is in GP. 0.333, PN. 839464, cast 839465 RH Inlet number three cylinder. For 50-53 all w/216.

Actually the casting # is 839466.

Photo of GM # 839464
@
photobucket

http://i669.photobucket.com/albums/vv57/glp0329/839464/Right_Inlet_GM__839464__zpsh1kqyh3g.jpg

Dan's Obsolete
in
Chinook, Montana
phone: 406-357-2615
has ( 2 ) GM NOS Rocker Arms - GM part # 839464

Chicago Auto Parts
in
Saint Anne, Ill.
phone: 815 - 614 - 3122
has ( 1 ) GM NOS Rocker Arm - GM part # 839464


Last edited by '54 3600; 08/27/2015 10:29 AM. Reason: addition
1954 3600
A big help to many on the Bolt
Now cruising in
The Passing Lane