[SoTxButler]

Shelby had a company named Rocker Arm Specialists from Anderson, CA make those rockers. They were investment cast stainless steel rockers that were bushed with a roller tip and were engraved with the Shelby Logo & 427 on the backbone.

That company is now in Redding, CA and is known as Rocker Arms Unlimited.

They never sold direct to consumers as they were building the rockers for Shelby. Shelby may have other companies build rockers at some point, these guys built the original ones.

While you won't be able to buy rockers from them, as least you know where they came from. If you find some...buy them....you won't have any issues.