Help needed with a Chrysler 6 cyl water pump

[ChemicalChaos]

Hi all,

I'm trying to track down a replacement for this water pump, on a Chrysler Flathead 6 fitted in a vintage USAF aircraft tug. I've found plenty of people selling the pump linked below, but to me it looks different as it has a flat machined left side whereas my one pictured appears to have another pipe emerging. Also the pulley appears to be a different size.
Can anyone please confirm/refute if its the correct part, and if not, then what is please?
Secondly, is there a UK source of these pumps or am I going to have to import one?

Thanks,
Matt

link to new pump:
http://www.eriksmilitarysurplus.com/wapuform37f6.h...

existing pump and engine details:

[bridgdav]

Some Info here and other US sites..

http://p15-d24.com/topic/5866-water-pumps/

[ChemicalChaos]

Thanks, having had a look at that link they seem to be the same, slightly different water pump as in my link though? Unless I am interpreting the pictures wrongly?
The other thing is they keep mentioning bypass vs non-bypass blocks and "opening them up to see" - is there a way for me to tell in situ?

(By the way, are the pictures in my first post will working for you? I'm trying to tell if their disappearance for me is due to the firewall I'm currently behind)

[SVTRick]

Try on here
Lots of help and advise.

https://www.facebook.com/groups/211373475726037/