The paperwork that came with this engine called it a "58-59". It came with these rockers and has the pinched off center tube. But this geysering #6 rocker vent has the inner oil groove lined up with the pressurized supply hole rather than offset. Kind of sounds like 58 rockers on a 59 engine to me. All four different rockers have numbers 85, 86, 87, or 88 cast into them. Regardless of who screwed up on this originally, it's my problem to solve now. I think that I need to get these rocker ducks in a row before I start messing with disassembling valves. Thanks Dave.
1946 Chevy pickup, 1948 Chevy suburban, 1950 Chevy pickup, 1952 GMC pickup, 1957 Chevy pickup, 1939 Chevy pickup
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