Nitrate steel exhaust valve is 1/8 oversize for 1948-1985 Big Twin models.
Fits:
FL 1948-1984
FLT 1979-1983
Fx 1971-1984
FXR 1982-1983
UOM: EA
Country Of Origin: TAIWAN
OEM Cross Reference: 18082-57
Accessory Items: 16-1728 – Pushrod Cover Clip Tool
Measurement: Head Diameter: 1.865 inches