Sealed Beam Headlamp Parts (assembly) 1941-1954 (55st for trucks)
Illustration: http://chevy.oldcarmanualproject.com/parts/1929_54/169.htm

Headlamp beam/bulb retaining ring, 41-54: 2.731
Headlamp beam/bulb retaining-ring screws, 40-54: 2.736

Headlamp beam/bulb: 2.737
1940-1954 adjusting screw (ALL: cars and trucks)
1940-48 car/truck & 1941-54 truck (only) adjusting-screw nut (for the beam adjusting screw, into metal)
1947-54 truck adjusting-screw nut nylon-insert

Sealed Beam Headlamp Parts (assembly) 1955:
Illustration: http://chevy.oldcarmanualproject.com/1929_57chevyparts/57cmpc0249.htm


Tim
1954Advance-Design.com
1954 3106 Carryall Suburban
1954 3104 5-window pickup w/Hydra-Matic
The 216 and early 235 engines are not "splash oilers" -- this is a splash oiler.