Wossner Piston orientation 1970 911T

[Attylla]

Hi Pelicans,

Can anyone with experience let me know if this is the correct piston orientation for Wossner Pistons?

Arrow pointing up towards intake valve or should it be the opposite???

[Arlo911]

The larger valvepockets would be intake, so I think you need to turn your pistons 180 degrees. Could be its just the way the picture was taken but it looks like the bottom valvepockets are larger at the moment.

[356RS]

Ario911 is correct, there upside down.

[Attylla]

Are You 100% sure?
The engine is completely assembled by now.
I need to be absolutely certain before I rip it apart

Thanks
Marcin

[Flat6pac]

Look at your heads, which one is the large valve?
Bruce

[roblav]

Upside down.

[Attylla]

Thank You ALL very much.
Really appreciate.

Marcin

[Peter M]

Correct orientation based on the valve cutouts is discussed in the Wossner installation instructions but no mention of the arrow.

https://www.woessner-kolben.de/en/forms/piston-installation/

[Richey]

!00 % sure they are upside down .

[Lyndon302]

Easy to see