911S prototype case

[gandalf_025]

I'm posting this for a friend.

This is case # 900053, 1 of 3 known sequentially numbered prototype cases.
It is a 901/02 case so it is an S Case that was cast in 1966.

Owner is asking 15,000 for this case..
It is located in Massachusetts..

I can take more pictures if needed..

complete case.jpg

[davep]

This is an interesting case, not just because it was in the prototype series, but also it appears to be the first example of a 901.101.101.02 case half. If you could provide me with additional high resolution photos it would help my research. If you could do one case half at a time and get the 901.101.101.02, then the date code and mating #, then the 901.101.102.01, the date code and mating #. Follow up with the type & build #, and the serial. The 101.02 case half was a modification for the 911S engine apparently, but at present I do not know what the feature change was. Can anyone help with that, or compare the two halves and find a difference? My data on the other two prototypes in the series show they have the earlier 101.01 half.

[gandalf_025]

Sent hi res pictures....

This piece of history is still for sale..

[davep]

Thanks for the photos. It appears to be what it is described as. Not many of the prototype series 900001 to 900100 are known.

[gandalf_025]

Still looking to sell this case..

[Key911]

Is this a Normal 1966 prototype or 1966 911S Case ? I thought S case started with 960001 ! Would you please educate me ?
Bump for a cool early case !
Thanks
Kevin

[davep]

The very earliest 911 cases were in the prototype serial range from 900001 to 900100; this range was reserved for prototypes only.
Then the production engines began at 900101 for type 901/01. Yes, the production 911S engines started with 960001; but this engine case was a prototype 911S engine, and the specific case halves were the same as used for the production engine. So in all aspects this case was for a 1967 model year 911S engine. However, the serial # says it is part of a small series of prototypes used for the development of the production engine; and the date codes place the time frame just before the engine type went into production.

[Key911]

Thanks for the explanation

[Jon B]

So in all aspects this case was for a 1967 model year 911S engine.

From what little is shown, the RH case half appears to have 5 threaded fasteners for the chain housing.
The change from 3 fasteners and 2 solid dowels began with the '68 model year engines.

Jon B.
Vista, CA

[davep]

Thanks for the info Jon; you may be correct. What I know is that the 901.101.101.02 case half with casting dates of 6/66 was coincident with the introduction of the type 901/02 engine. Perhaps you can tell me the exact changes between the 901.101.101.01 case half and the 901.101.101.02 case half, and in particular if that change had to do with the 901/02 engine type.