Up for sale is a rocker arm shaft oil connector which goes in between the shafts. Make sure yours matches up just incase you have a different year head.
The TRW number was 49002 and the GM number was 3779879
1959 - 1962 Chevrolet 6 cyl. 235 & 261 Cars and Trucks
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If you have a question be sure to ask and maybe I can help you