Help - identify piston

[STEVES]

I need some help identifying the set of pistons before I sell.

Stamping inside:


Top of Piston:


I think they are 67-68 S. Rings are there some rust, No wrist pins. Have been sitting on shelf for quite a while.

Input? Value?

Thanks
Steve

[Allen Henderson]

Piston Heads,

Those are 2.0 ltr. 69S high compression 10.3:1 Pistons. Thanks.

-Allen-

[ajwans]

Lots of good info here: https://www.early911sregistry.org/fo...67-68S-69S-906

andy

[66S]

69S is nominally 9.9-1 C.R. These pistons have a 69S nr. but have the more round valve cutouts like 67S. What are the cutout diameters?

[Allen Henderson]

69S is nominally 9.9-1 C.R. These pistons have a 69S nr. but have the more round valve cutouts like 67S. What are the cutout diameters?

All I know is what the spec sheet here says (it is the same one in the link-I find always just best to post the item(s) rather than a link. Thanks.
-Allen-

[Theunz]

69S pistons

[Allen Henderson]

69S pistons

You say "1969 Datsun 2000...worth less, but more valuable"

Amazing oxymoron !

[Theunz]

You say "1969 Datsun 2000...worth less, but more valuable"

Amazing oxymoron !

Value is not necessarily measured in monetary terms.

[Allen Henderson]

Value is not necessarily measured in monetary terms.

Ok. However, to my mind, $$$$$ is probably the best metric. In the new world we are living in, that may change...or some would wish it so Thanks.

-Allen-

[tom1394racing]

The part numbers shown on the chart or actually the casting or, in this case, the forging number. Those are cast or forged into the part when the rough pistons are made. The final part number is determined by the machining process. I believe that both the 67/68S pistons and the 69S pistons could be made from the same forging.