View attachment 154141The throttle pressure linkage is a collection of like 20+ parts. And while some of those 20+ parts of the linkage may be found on other engine sizes, each engine's linkage is more or less unique to each engine size.
The Dealer Parts Book can help you work out if some of these parts are available on other engines, if you're looking to piece together what you need.
Do you think you need most/all of the parts in the setup, or are you just missing a few pieces?
I think A&A Transmissions may sell a reproduction kit.
426 Hemi Kickdown Linkage - A&A Transmissions