70 z rocker arm #'s
Looking for OE rockers for my 1970 z. Does anyone know a part # for these? Upon engine disassembly, 8 rockers had "T" stamped on top. Read somewhere that was heat treated tip. If that is the case, I am looking for 8 more but need to verify a part #. Someone told me 3974290 is the # but upon further research it does not seem right.
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