So are you saying that you could not get a TH400 with a 350HO, unless the car had A/C, but that all 350 2-barrel engines could get a TH400, if the car had A/C ???
Just curious. Where did you get this info ? Post a link to it please.
Sorry, my information above was apparently only valid for 350 2-barrel Firebirds.
If we only look at 1969 350 engines and 3-speed automatics, the 1969 Pontiac Service manual (Shop Manual) says that the TH350 (or M38) trans would be fitted to 350 2-barrel except A/C (transmission code JF). It's on page 7G-1 in the manual.
Page 7E-2 in the same manual says that 350 2-barrel cars with A/C would get a TH400 (or M40) with code PV, and a 350HO would get a TH400 with code PS (regardless of A/C or not).
I still can't figure out why Pontiac felt that a 350 2-barrel with its 265 hp needed a beefier transmission if the car was equipped with A/C though.