As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING ASSEMBLY OF ENGINE, MEASURED DRY TAPPET CLEARANCE FROM .107 INCH TO .187 INCH. LYC OHM REQUIRES .028 INCH TO .080 INCH. RETURNED 6 CYLINDERS TO EC/SW WHERE THEY CUT/REMOVED MATERIAL FROM THE CYL FLANGE. CYLINDERS WERE RE-INSTALLED. THESE CYLINDERS JUST MADE THE .080 INCH DTC USING THE LONGEST PUSH ROD AND NEW ROCKER ARMS.