79 240d (123.123/616)

The online FSM at startekinfo mostly doesnt work for me; keep getting "content not available" messege when trying to view the final pages.

Due to the broken timing chain issue I previously posted about, I am having to do fairly deep R&R of internal engine components and will need info from a FSM. In looking at hard copy availability it looks like I may not be able to find the 79 manuals. There are some differences between "early-up to 79" and "late-post 79" models.

Will a FSM engine volume from 80-83 (or even from 77-78) work for my 79?