The Rover-Landers of BC

Seeking the cast aluminum piece that connects the SU carb to the air cleaner. Bolts to the carb, O-ring for the air duct side. The gizmos in question are shown in the picture, one attached to each carb at the far left and right.

A part number would be much appreciated if the actual part is not available!

Cheers...
//uploads.tapatalk-cdn.com/201804 ... c73a54.jpg

There are a few part numbers:

603670 - Detox, Europe

Engines 11D, 15D, 16D, 17D, 19D:
ERC9396 - 9.35:1, Detox, From suffix B
ERC4181 - 9.35:1, Detox