no top motor numbers
 

motor has no numbers all have been grinded off.can someone post pick of any date codes or serial numbers picture locations, that would be underneath .all i know its a 2.7 motor thank you
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No it’s very tough without the top numbers. There is a part number on the two case halves very easily seen from underneath that can help narrow it down some. I also think there may be a casting year underneath somewhere. I don’t think you will be able to determine whether it’s US spec, Japan or ROW without taking it all apart and a total expert looking at it. To clarify both the serial number and the case type number are missing?

Hi John..if it would be 2,7 it would have to have green engine cover not red..more likely 911sc motor
What year is the 911?The sticker(yellow) on top of the alternator housing is saying what?

Ivan

Identifying an unknown motor........
 

John,

Without the engine number on the crankcase, I would investigate the external engine parts for forensic identification. If you could provide the part numbers for these:

a). Any trace of the engine type number located at right topside of the crankcase?
b). Alternator fan housing number?
c). Intake runners (2R or 4R)?
d). Information on the sticker (alternator strap)?
e). Rotational direction of the of the ignition distributor.
f). CIS components:
WUR
FD
AAR
Throttle body
Air flow meter
CDI
Ignition distributor
Etc.

The air filter cover is from pre-SC engines. Identify if the crankcase is made of Mg or Al. Putting all these informations together would help you come to a better conclusion. Keep us posted. Thanks.

Tony

yellow is says 1972

car is a 1973,5 that sticker says 1972

its a 2.7 engine I've been told

The casting numbers on the case halves by the oil return tubes?
The double bolt fan housing retainer, early production
Bruce

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john , your engine numbers should be here-green and red arrows, or is yours like this one?
http://forums.pelicanparts.com/uploa...1297769201.jpg

mine looks like that

IMG_7533.jpg

73.5 will be a 2.4 on a 7R case. It the spirits were made larger on a rebuild one could install 2.7 p&c

http://forums.pelicanparts.com/uploa...1511116466.jpg
http://forums.pelicanparts.com/uploa...1511116466.jpg
http://forums.pelicanparts.com/uploa...1511116466.jpg

Hi John looks like you got your self pretty nice car with a nice engine..you did not mentioned if it is running?Could be 1973 911S...do you have papers for the car ?there is no info there?
here is a list to go by...

901.101.101.01 901.101.102.01 AL 1 5071
901.101.101.10 901.101.102.10 sandcast MG for 906 engines
901.101.101.02 901.101.102.01 AL 5224 9272
901.101.101.0R 901.101.102.0R AL 9730 12050
901.101.101.1R 901.101.102.1R MG 12134 15415
901.101.101.2R 901.101.102.1R MG 17421 1970
901.101.101.3R 901.101.102.2R MG 1970
901.101.101.3R 901.101.102.3R MG 1971
901.101.101.4R 901.101.102.3R MG 1972
901.101.101.5R 901.101.102.4R MG 1973
901.101.101.5R 901.101.102.7R MG 1973
901.101.101.7R 901.101.102.7R MG 1973 1977
901.101.101.7R 901.101.102.7R AL 1973 RSR
911.101.103.0R 911.101.104.0R AL 1973
930.101.103.4R 930.101.104.4R AL 1978 1980
930.101.103.6R 930.101.104.5R AL 1983

Near the 901.101.101.7r case number "should" be a casting date mark. see if you can get a pic and post that. Then we might be able to say if it was originally a 2.4 or a 2.7. It might be an unstamped replacement block 2.7.

its a t targa from factory its not matching motor.just trying to figure out what motor

no didn't get it running yet

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