I found mine.
http://www.ebay.com/itm/Shelby-Serie...sories&vxp=mtr

In all honesty, there are several of these engines (stock) on ebay for 500 to 700 bucks. Not bad at all. Does anyone know how well they hold up? The one I looked at had 160k on the clock. Is a rebuild in order? How pricey is that?