Yes because at SJ the white is typically early ,Reddish is typically a little later and yellow typically later yet. For example I have a Nov 66 build car that had one red and one white indicating how early the transition began to the reddish.The reddish is the most common in 67 from my observation but those observations may not jive with others.
Interesting observation, I assume by the language that this is an unrestored example but is it safe to also assume this November 66 example is also one with air conditioning too? If so, do you have any recollection if one of the hoses was straight, as what has been described in the Service Publication Jeff shared in the other thread? (I have attached a copy here also for reference). It is easy to deduct that the hose mentioned in the service publication that MAY HAVE interference with hood hinge or exhaust manifold, would be the heater inlet hose.(valve to engine,not the return hose from heater core to engine).
Noting this thread is for 390 examples (and and should also include GT500 examples presumably), my understanding of these Select-Aire systems suggest these details are not limited to engine size. Assuming there is no evidence to the contrary AND since I am currently working on a 289 example with factory installed Select-Aire, I wish to jump into this discussion and broaden the scope a little.
As already stated, I have a few questions now and will line them up:
1.) (Bob G.), On the example you mentioned, do you know which hose was the reddish color? (Inlet hose or return hose)
2.) (Bob G.), Do you know the actual build date of that example?
3.) (Bob G.), Was this example equipped with factory Select-Aire, yes or no?
4.) (Bob G.), Was the reddish hose a curved end hose or straight?
5.) (anyone), Currently, I have a curved end hose with white stripe to use on my Nov. 2, 1966 built San Jose 289. I have believed for some time now that this would be correct. Would it then, in corroboration with the service publication, that the most likely correct hose to use would then be a STRAIGHT hose, carefully routed to have adequate clearance of the hood hinge and exhaust system, without any kinks?
6.) Assuming Bob G. is able to answer some or all of those questions, perhaps there may be more questions or answers to what would typically be found on a
very early NOVEMBER built SJ car in regard to this detail. (I will wait & see)