Hey joe bob
Try contacting this company; they may be able to answer your question.http://andersonaeromotive.net/
Anderson Aeromotive is an FAA Certified Repair Station specializing in the overhaul of Pratt and Whitney and Curtiss-Wright radial engines.
Pratt & Whitney R1830 , R2000, R2800, R4360. Curtiss-Wright R1820, R2600, R3350
Anderson Aeromotive is the world's largest overhauler of cylinders for Pratt & Whitney and Curtiss-Wright engines.
Our facility covers 55,000 square feet for storage of engines, consumable parts and engine sub parts on 8 acres of land.
Anderson Aeromotive currently employs 30 mechanics and overhauls or repairs approximately 50 engines per year.
Anderson Aeromotive is located in North Central Idaho, half way between Coeur D'Alene and Boise Idaho.
I am currently rebuilding a Pratt & Whitney R-2800 Double Wasp for the Marietta Museum of History (Aviation Wing). I am using a company out in California to get the missing parts I need. Parts are not cheap so take care of your engines! Have fun and I hope you get your questions answered.
Keep the shiny side up and the dirty side down!
Ret SMSgt Cliff Lord - C-130 Flight Engineer