1975 engine number help

[47silver]

Hi
our motor is 6450412 in our 1975 911S
Porsche Engine Numbers

this site calls this number a 911S carrer for 75.
can this be correct?

[JJ 911SC]

Fm the Red book;

H Series Aug 74 - Jul 75

911S (49 State)

Engine # 6450001 - 6452440

Engine type 911/43

Chassis # 9115200001 - 9115202310

2,310 produced

Carrera body # would be 9115400001 - 9115400395

So you need the chassis # to confirm as the engine type & # was also fitted in the Carrera (395 produced) but a Carrera Targa does not fit this engine number range so you have a 911S