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914World.com _ 914World Garage _ 911 engine serial numbers

Posted by: Dan (Almaden Valley) Oct 3 2005, 09:08 AM

So what year is it anyway?
I know it is any early aluminum case 6, 2.0L

Thanks

Posted by: ArtechnikA Oct 3 2005, 09:22 AM

that's not a year my current Spec Books cover.
i have The Porsche Book at home, i can check tonight.
the Type number might narrow it down better.

curious why you care - all the (early, aluminum, 2,0) cases are the same AFAIK ...

Posted by: smg914 Oct 3 2005, 09:51 AM

According to "The Porsche Family Tree"
1965 911 130hp engine serial # 900001-900360
1966 911 130hp engine serial # 903551-907000
1967 911 130hp engine serial # 909001-911000

According to "The Porsche Book"
1964 911 130hp engine serial #900001-900360
1965 911 130hp engine serial #900361-907000

So it looks like serial #902153 is a 130hp engine from a 1965 911 coupe. Chassis number between 303391 and 305100.

Posted by: Porsche Rescue Oct 3 2005, 09:55 AM

The B. Johnson 911 book says '65 with Solex carbs. (900361 to 903550). Wonder if that means "solex cams"? Never have known what it means when people talk solex cams, but I think they are a good thing.

edit: he says 900001 to 900360 denotes 1964.

Posted by: ArtechnikA Oct 3 2005, 09:55 AM

QUOTE (smg914 @ Oct 3 2005, 11:51 AM)
...serial # 902153 doesn't fall in any of these ranges. Maybe it came out of one of the 1963 901's or one made in early 1964.

since it's after the 1965 range, it could be a factory replacement case...

Posted by: Dan (Almaden Valley) Oct 3 2005, 10:00 AM

I know it is an aluminum case, aluminum cylinders, solex (center oil feed) cams, and it has a cover plate over the spot where an original MECHANICAL fuel pump was.
Just wanting to get some history if possible.
Thanks

Posted by: ArtechnikA Oct 3 2005, 10:02 AM

QUOTE (Porsche Rescue @ Oct 3 2005, 11:55 AM)
Never have known what it means when people talk solex cams, but I think they are a good thing.

they have a fairly but not horribly aggressive profile. Anderson-II has a nice table of lift/duration data, but i have only the first edition with me today. IIRC, more than an E, less than an S.

"real" Solex cams are also center-lubricated and must be run with an appropriate cam box. a *real* early set might have the gizmo on the end of the left one to work the mechanical fuel pump that i've only ever seen in pictures...

Posted by: Dan (Almaden Valley) Oct 3 2005, 10:08 AM

yes these are center oiled cams...fitting sits on the front center of the cam cover instead on the side with a banjo fitting.
I will post a pic this evening so you can see your second pic of a cover plate for a mechanical fuel pump, it is on the left cam cover looking at the engine from the fan end.
I know this is an oldie...
And yes the info I have about solex cams is that they are hotter than an E and a bit milder than the S.

Posted by: ArtechnikA Oct 3 2005, 10:09 AM

QUOTE (Dan (Almaden Valley) @ Oct 3 2005, 12:00 PM)
I know it is an aluminum case, aluminum cylinders, solex (center oil feed) cams, and it has a cover plate over the spot where an original MECHANICAL fuel pump was.

Biral cylinders - iron cylinder with an over-cast aluminum finned muff.
901/01 - later engines used different cams and no mechanical fuel pump, although the chain cover castings retained the bosses until the magnesium versions came out.

Posted by: Dan (Almaden Valley) Oct 3 2005, 10:12 AM

That may be it. There is a stamp on the engine that has 901/01.
And thus far I have only been able to see the cylinder fins, that are definitely aluminum.
Thanks again

Posted by: smg914 Oct 3 2005, 10:22 AM

Quote:
Serial #902153 is a 130hp engine from a 1965 911 coupe. Chassis number between 303391 and 305100.

See my earlier edited post.

Posted by: trekkor Oct 3 2005, 10:32 AM

Dan, are you doing a SIX conversion?

Building a 2.5 mini-monster?

I hope so

KT

My engine #'s are 901/06 and *911 670*.
Supposed to be '69 2.0
anybody feel like checking again?

Posted by: ArtechnikA Oct 3 2005, 10:45 AM

QUOTE (trekkor @ Oct 3 2005, 12:32 PM)
My engine #'s are 901/06 and *911 670*.
Supposed to be '69 2.0

says ANderson-I:
901/06 -- '67-'68 911, revised cams and heat exchangers,

says '69->'71SpecBook:
engine numbers are 7 digits, so a 6-digit engine number doesn't parse...
but a 901/06 was not used on any '69 911...

Posted by: trekkor Oct 3 2005, 10:54 AM

Maybe I have a different motor than I was thinking...

KT

Attached image(s)

Posted by: smg914 Oct 3 2005, 11:01 AM

Engine serial #911670 is a 130hp, 1966 911 coupe.

Posted by: Dan (Almaden Valley) Oct 3 2005, 11:03 AM

Probably, but not until next fall/winter.
Will run as a 4 cylinder for first season.
Getting suspension and body dialed in this fall/winter.
That is unless I have a major 4 banger meltdown, then the conversion might happen soon rather than later.

Thanks to all that have responded...that is what makes this site so fantastic

Trekkor,
Sounds like your motor might be very similar to the one I might get.

Posted by: trekkor Oct 3 2005, 11:15 AM

You can do the conversion in ONE solid week of hard work if you have all the parts in hand.

It's true.

KT

'66 130hp, eh? Thanks!!
( I think it make more than that though )

Posted by: ArtechnikA Oct 3 2005, 11:18 AM

QUOTE (trekkor @ Oct 3 2005, 01:15 PM)
'66 130hp, eh? ( I think it make more than that though )

Type and Serial numbers can only tell you what it was 40 years ago... :-)

Posted by: Porsche Rescue Oct 3 2005, 11:18 AM

Early aluminum cases have been turned into all kinds of mutations over the years. Only if it remains stock would it be 130 hp. I once had one of those 2.5's built from an early case and it was sure more than 130!

Posted by: Dan (Almaden Valley) Oct 3 2005, 03:03 PM

Actually Trekkor,
Once I decide to do the conversion it will take very little time...my next door neighbor is a factory trained Porsche Tech. and owned his own Porsche repair facility for ~20 years.
He has built or prepped probably over 100 914s and 914-6s over the years. Many of them were his own race cars. Many years ago he built a semi tube framed 914-6 racecar with a twin plug 3.4L. This is in the days befor Porsche built anything bigger than a 3.2L motor.
Big race slicks and 915 box.
I think my conversion with all parts present should take no more than 2-3 days.
At least I hope so.

Posted by: trekkor Oct 3 2005, 03:15 PM

QUOTE
should take no more than 2-3 days

That's manly...

KT