run this engine # for me please

[bob tilton]

6550481 (911/44) or i may have written down incorrectly by one digit 6556481 (911/44). i was literally hanging from the rafters in the warehouse trying to read the number. thanks!

[Grady Clay]

It seems to be a California emissions 2.7S/Carrera, 160 HP.

911/44 is a California emissions 2.7S/Carrera.

The S/N is:

6 = 6-cylinder
5 = 911S/Carrera California
5 = 1975
XXXX = 4-digit consecutive serial number usually starting with 0001. Exceptions: Starting with 9001 = engine for Sportomatic.

From that engine you could build a nice light weight 2.8S 11.5:1 twin plug that few could distinguish from an original ‘68L.

Best,
Grady

[LeRoux Strydom]

911/44 belongs in a H-series (Aug 74 - July 75) 2.7 California 911S or Carrera. Same as 911/42 except for air pump, thermal reactors and EGR emissions control. 160hp @ 5800rpm, 162 ft/lb @ 4000 rpm.

I can't find the engine number in my source (Red Book). Lots of number series close to it (656xxxx etc.) but no 655xxxx. For instance, 6450001 - 6452440 are listed as 49-state US cars including Cali, but showing 911/43 type. Someone with a better source should help out.

LeRoux

Edit: Doh, Grady beat me to it.

[bob tilton]

thanks guys. sold to me as a 75 2.7S so everything is correct. bought it rebuilt 0 miles so i will not be tearing it down but i am considering the H/C RS carb'd route depending on funds and patience. suggestions?
again really appreciate the info.

[Grady Clay]

LeRoux,

It must be the difference in time zone, not knowledge.


If an engine like this had been just stuck up in the rafters when newish after a crash or uprate to a 3.0 in ’78 – Great. An original, low mileage, un-molested 2.7 is a real find.

If it is a worn-out, high mileage, thermo reactor engine – Tread carefully.

Best,
Grady