Rocker-arms. They're weak-point of these engines when improper valve-adjustment and/or locknut torque is used.
Pieces would fall into oil-pan and stay there, so not likely to harm anything. Should still pull off oil-pan to inspect while replacing head. Might not be worth trouble of measuring remaining rocker-arms, cams, valve-stems and valve-guides to determine how many of them to replace.
Last futzed with by DannoXYZ; April 23rd, 2019 at 09:10 PM.
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