Thanks Vikki and Greg. Also, I’ve done some research and may have found, what might be, an explanation of the “Power Flex Fan” on my sticker vs. the definition here that doesn’t seem to match my fan type. According to the AMA specs and parts book there were six fans used in ’68.
9794230 4 blade 17 5/8 dia. F/6 exc AC or HD 9798940 4 blade 19” dia F/8 exc AC, AIR or HD, also- F/8 400 RA, also F/8 AT 2bbl exc AC,
480033 5 blade 19” dia F8 400 4bbl exc AC HD or RA
9788982 7 blade 18” dia F/6 AC or HD
9796372 7 blade 19 ½ dia F/8 AC * 9777012 7 blade 19 ½ dia thermo cont All V8 exc AC * * I believe the parts book was wrong in which of these fans had the thermostatic control since the AMA specs show that the V8s with AC got it rather than the other way around.
Back to the “Power Flex Fan” on my sticker. It appears that a 19” 5 blade Power Flex fan is selected for the 400 and 400HO engine options to replace the standard 19” 4 blade fan. Thus, that is why it appears on the sticker. However, the AC option later substitutes another fan, a 7 blade, 19 ½” thermostatically controlled part. The AC option on the sticker simply does not spell out the new fan, which trumped the 400HO option.
