Your 350cid/295hp (L48) engine was sold on Ebay on 7-29-07.
Engine pad is stamped: 7N157011 V1215MS
Block casting number: 3892657
Block casting date: L 9 6
Seller id: partsman429
Seller location: Piedmont, NC
Sale price: $874.00
Buyer id: jjrandel
http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&rd=1&item=130136856545&ssPageName=STRK:MEWA:IT&ih=003
Paul