Hey guys thanks for responding.

The info I have is that the engine def wasn't original to the car not do I think it even came from a targa. The car was restored in the late 80s or 90s and a 3l was put in. I'm not sure what 3l it is.

ignoring the serial #, the 930/07 would be from a 1980 SC US/Cdn/50 State legal.

Do you have the Transmission Model #? The match would be 915/63

I'll look for the transmission number

I think someone has fudged one of those numbers; that looks to be an impossible combination.

The "7" in the type number doesn't look like a factory font--note the down stroke on the left side of the top, and the angle of the full leg of the 7--much different than the 7s in the serial number. Agree, it's an impossible combination.

interesting, ill get a better pic of the number as well

Can someone help me with this engine nr. *909751*

0 Series, 1967 911 Coupe

Matching Chassis Ser # between 305101-308511

3,421 produced

Thank you! What do you mean with 0 Series?

0 was the original series of the 901/911, A was the 1st revision;

0: 1964-67
A: 1967-68
B: 1968-73 and so on https://en.wikipedia.org/wiki/Porsche_911

Better pic of the serial, is it a fake?

http://forums.pelicanparts.com/uploa...1487156839.JPG

I am not positive, but it does look reasonable even if the 4 looks a little different.
http://forums.pelicanparts.com/uploa...1487164056.jpg
http://forums.pelicanparts.com/uploa...1487164065.jpg
http://forums.pelicanparts.com/uploa...1487164076.jpg

This is the number that caught my attention. Perhaps you, who have much more experience than I on these matters, can comment on the "7" in the type number. That's the one that looks highly suspicious to me, but I'm not familiar with the fonts for the type numbers. I just assumed they were the same as those used for the engine serial numbers. Again, focus on the "7". Secondarily, look at the "0" in front of the 7. It also has an odd appearance--much narrower than the "0" in the serial numbers.

http://forums.pelicanparts.com/uploa...1486878491.JPG

Kind of fuzzy, but they do look the same. It almost makes me wonder if the two photos are from different engines.
http://forums.pelicanparts.com/uploa...1487181945.jpg
http://forums.pelicanparts.com/uploa...1487181954.jpg

Thanks. I have never studied the type numbers closely, but from your two photos, the "7" does look consistent. Obviously, the font is a bit different than that used for the serial numbers.

Still can't reconcile the engine number with the type number on the op's engine. Seems way out of sequence for the 930/07 to be associated with the 77 engine number.

I have looked at a few more images on my home computer, and if I was to guess, then I would say the 930/07 is factory stamped. The serial # has a few disturbing features: the surface that is stamped is very smooth like a later engine case, not a pebbled surface; the star seems a little larger; the 6 seems to be round not ovaled; the 4 has a much shorter leg. So, if anything, I would say the serial is a good forgery; but why make it an impossible combination.

Hi

I hope someone can help me out here.
Can you tell me the specs + year on this engine:
6302573
930/09

And this one:
It should be from a 911 Carrera RSR 1974
6660552
930/02
(Maybe it's a modified engine, but need the real/original specs)
3.0L, 6 cyl. Twinplus Boxer, 280 HP?

Thanks Danny

Since you are in the business you should get this book: https://www.amazon.com/Porsche-911-Red-Book-Specifications/dp/0760347603/ref=sr_1_1?ie=UTF8&qid=1493726217&sr=8-1&keywords=porsche+911+red+book

Thank you very much. I will definitely buy this book.

I found some data by Google 6300001 (930/07) and 6660001 (930/02)
But i didn't found that the 6302573 - 930/07 was a 3.0, so thank you for that.

-6300001 (930/07)-
Engine number: 6302573
Type: 930/07
Porsche 911SC (U.S./Canada)
Year: 1980
Produced: 4.272
9.3:1 compression ratio
Oxygen sensor (Lambda sonde) fitted
Tree-way catalytic converter
180 horsepower @ 5.500 rpm
175 foot-pounds torque @ 4.200 rpm

-6660001 (930/02)-
Engine number: 6660552
Type: 930/02
Porsche 911 Carrera 3.0 (I-program)
Year: 1976
Produced: 1.093
Weight: 1.120 kg
8.5:1 compression ratio
200 bhp @ 6.000 rpm
255 Nm torque @ 4.200 rpm

We have the Red Book in stock and available here as well: Porsche 911 Red Book 3rd Edition BK216896 - BK-216896 | Pelican Parts. It is a really great book with a lot of information. :)