Dry sump swirl tower oil hose fitting thread size

[kallegrabowski]

Hi,

I am planning to fit a laminova oil cooler to my dry sumped k-series and need to install new oil hoses. Does anybody know the thread size of the connector at the top of the dry sump swirl tower where the return hose is connected?
I want to replace it with a dash 10 connector and don't even know whether it is metric.

Thanks
Felix

[kallegrabowski]

To close this topic the thread is 5/8 BSP according to the Caterham drawing.