We must be talking different things
Here's what I'm referring to, looking at the engines from the front, the P5 final shaft (output shaft) is on the driver's side of the engine vs the P1K/T1K is on the passenger side. FWIW, a P7 engine has a similar arrangement to the P5.
View attachment 452771
P5
View attachment 452772
P1K/T1K
View attachment 452774
P7