The L282 should stand for the casting date.
L = December
28 = 28th
2 = year (in this case 1962) which makes sense for a 1963 engine.

Here are some casting codes on L6 engines I have/had. Looks like my 1963 230ci was cast only 33 days after yours.

A 292 has features that set it apart from the 230ci and 250 ci.
Attachments

Last edited by Lugnutz; 11/16/2021 1:19 AM.