Chunks in the oil pan

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Aloha
Need some help with replacing part. I remove the oil pan on my 29 coupe and found some big chunks of metal inside the pan. I found the problem, however not being a mechanic I do not know the name of the part, even looking at manual or part catalogs. Need some help identifying the part (next to the timing gear and the oil slinger) and to let me know if I have to take the engine out to repair.
I am pretty sure I got to take the radiator out and possibly loosening the crankshaft. At this point I am not sure if there is additional damage but everything looks good inside the block.
Any help greatly appreciated, diagram?
mahalo, thank you.