Can someone decipher the application meaning of the mpc listing ? The picture is of later 70"s version of the cap or the last style before it went obsolete. It is not relevant to a 60's engine regardless of application because of it's different markings /look .
"65/67 66/69 B-GT, F(4/B)" - "B" is Fairlane, "GT" is the 390GT motor. "F" is Mustang, "(4/B)" is 4-barrel carb. Usually the MPC will specifically list "GT" for the 390GT, but sometimes it seems to get included under the 4/B description. Also, as we all know, this type of cap was not used for 68-69 Mustang, so gotta take the entries with a grain of salt.
"68/69 A, B, F(2/B, 4/B)" "A" is full-size, "B" & "F" as described above. Looks to me like they got a bit lazy on this entry, threw everything in one line, and used "AR" (as required) to let the parts guy sort it out. I don't have an earlier copy of the MPC, perhaps the entries were more detailed?
The photo is relevant to show the configuration of the cap with the straight side spout. Yes it's a replacement part but since the caps are not marked with part numbers, but lacking engineering drawings it was the best way I could find to link the C5ZZ-D part number to a specific cap. That assumes the cap came in that box, of course. I didn't want use a photo of repro parts with that number, because that makes even more assumptions. For example, the Scott Drake C5ZZ-D repro appears to replicate the cap we're talking about, but the application sticker on the package indicates "65/66".
