[rustybill]

Picked this up with a few other things at a swap meet last year. No part number. Head side is 4" wide and ports are 1". Looks like a Triumph except the carb side is angled up. Any guesses?

 

[whittiger650]

Most likely for Pre-Unit Triumph, either iron head T110 or 6T or both.

 

[dandruff]

Pre unit rigid, the angle is so the carb doesn't hit the downtube of the frame.

 

[need louvers ?]

'53 Triumph S.U. carb intake. Fit's the porthole frames.