- Official Post
Here is an Ebay auction for an NOS C3OZ 6A360 A counterweight and an NOS C3OZ 6306 A crank sprocket by Ebay member "welbury3028" with a Buy-It-Now of $300.00:
NOS Ford Mustang Shelby ORIG 289 HIPO COUNTERWEIGHT SPROCKET.
Packaging is worn, counterweight has surface rust from being in the package and sitting but never used.
https://www.ebay.com/itm/NOS-Ford-M…5.c100752.m1982
-Fred-