Original from buick dealer in the 1980's when I bought it. It got installed in a skylark custom that never was running It's on eBay for $100 but will lower price to our members for $80 plus shipping http://m.ebay.com/itm/Original-GM-1...k-GS-350-engine-only-/262718851093?nav=SEARCH Look at pictures on eBay but don't purchase it from there I will give discount for our members here.