67 K Code Thermactor

Good luck, Jeff. All I have is a picture of the left and right Thermactor tube assemblies...

Jeff, I have a friend that has a 66 A code Calif. GT with all of the emissions. I don't know if it's the same as 67 K code but he could post if it is the same.

Ford TSB #67, Article 1070, dated 5/5/67, stated that beginning approximately April 5, 1967, the California Mustangs with 289 HiPos would have thermactors. Over a year ago I checked with Kevin Marti of Marti Auto Works (623-935-2558) about the number of K-codes that received the thermactors. The answer was 14. So, if you have one, it is definitely rare.

As to the system, it is just like other 1967 systems, except that the air bypass hose could not run from the bypass valve to the air cleaner, because the low profile air cleaner did not have provisions for it. According to Ford assembly manuals, Ford ran the hose all the way forward to the thermactor air filter where a special lip with a hose fitting was used. The service part number Ford gave was C6AZ-9A492-C, which included a C5AZ-9C639-A cap, which was a rubber cap for a .625" I.D. hose. The cap was not needed in this case.

Details of the thermactor system can be found in the "Mustang & Ford Small Block V8" book on pages 7-26 & 7-27, 6-32 through 6-42, and the "1967 Ford Products Engine Equipment Assembly Manual" by Jim Osborn page 119.