ID for old Hemis

I am in need of information to help identify an old Hemi engine I have. The numbers I have came from a boss pad in front of intake. Any useful sites or info is appreciated. Contact Aaron @ my65300l@yahoo.com

http://www.classichemi.com/index1.shtml

hothemiheads.com they have all the info you need to check the numbers.

http://powerplayhemi.com/

powerplay is hot heads. Same place same company. Bob first open power play then expanded and became hot heads racing and research