440 Water pump housing port plug?

[shone190]

Hi guys,

   I bought aluminum 440 water pump housing, but need to buy plug for the biggest port on housing. I marked that port on the picture, so does anyone know what is the bolt dimension and thread for this port?




I am from Europe, so here I only have metric bolts, so I need to order it from USA and need to know exact dimension

Thanks a lot in advance.

[John_Kunkel]

That hole takes a tapered pipe thread.

https://www.summitracing.com/parts/rnb-02473?seid=srese1&gclid=COaY9ez1nc0CFVBffgodnioDYw

[shone190]

Thanks a lot John

[ACUDANUT]

 I think I have bought many over the years from O'reilly's ?

[shone190]

That hole takes a tapered pipe thread.

https://www.summitracing.com/parts/rnb-02473?seid=srese1&gclid=COaY9ez1nc0CFVBffgodnioDYw

I just measured with my metric meter and it is about 181mm diameter, so it is not possible to be 1/2". 

1/2" is 127mm diameter, so it is bigger than 1/2".

[RECHRGD]

That hole takes a tapered pipe thread.

https://www.summitracing.com/parts/rnb-02473?seid=srese1&gclid=COaY9ez1nc0CFVBffgodnioDYw

I just measured with my metric meter and it is about 181mm diameter, so it is not possible to be 1/2". 

1/2" is 127mm diameter, so it is bigger than 1/2".

The 1/2" is measured at the inside pipe diameter, so yes, the outside threads will measure larger.......

[John_Kunkel]

I think I have bought many over the years from O'reilly's ?

He's in Serbia.