Identifying 1969 Swinger

That's what I was kinda trying to get to,
If it had a P or an H for 5th digit, its either 340 or 383 correct? So could it be narrowed down to either a Swinger or GTS?
Kinda like a 68 cuda. If it had a P in the vin it was not only a 340 car, but a Formula S.
Does that make sense?
No. Some 340 cars were GTS'. It's all about the VIN...