Need help with sequence number!

New to the forum and wanted to see if you guys could help me. I just picked up a 69 318 and was trying to see if I could find out what kind of mopar it came out of. Here is the casting numbers and sequence number from the block, head and intake. Block Casting 2536030-318-1
Sequence number is 9G213146. Head casting number is 2843675-13 and intake casting is 2468960. I appreciate any help I am really trying to see if I could find out what kind of mopar the engine came out of. Thanks again for any help. Jeff