Hello everybody. I have a 1985 300SD. I bought it cheap cause it had a busted head due to lack of antifreeze during a cold winter. I got a replacement head from a scrap yard for $30 that I still haven't put on yet. Thats just my intro and not what the post is about.

I am trying to find some info on the pistons and rods in the early 300SD. OM617.951 I think. I have been searching and searching and can find nothing. Are the pistons aluminum? Are the pistons and rods cast or forged? What is the rod journal size? What is the rod length? What is the pin height? Overall how strong are these rods and pistons? Thanks for your help everyone.