I think that LC in the engine serial number indicates an engine on a C60 truck (with RPO 225 )

I will look up that RPO - my browser keeps crashing when I try to read it online.

Can you post the block and the head date casting codes?

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.