I have 4 65 289 hipo blocks with factory VIN Numbers. Prices vary between 2500 and 3500 Some are Std and some are 030. I have several others w/o vins as well. I am pretty sure the 2nd one came from a Shelby. Can deliver to Columbus All Ford
Jay Cushman
text is best
207 749 3307
5R09K217590 might well be from a May 1965 GT-350.
Have you checked these with Howard Pardee? If one is from a Shelby, he might be able to get you in touch with the current owner.
Steve