Id on Ul intake nipples

What is the id on Ul intake nipples?
I have serched this forum and the net but cant find any information on it.

33,1mm
1,303 inch
Dont think the one I have are OEM, but I don't remember.
GuS

not bigger than that, thought that they where alot bigger than wl.
Do you know what size the ul manifold has?

Sorry cant help you have no U Y-intake.
GuS

I got 1.337" I.D. on both short and long manifolds, a couple that have been polished, 1.375" all the way to 1.430".
My N.O.S. nipples tagged 1112-37 & 27039=37 are 1.309" I.D.
I would taper the I.D. of the nipples to match the I.D. of the manifold, For smooth transition,
A Maximum of .250" into nipple at manifold nut thread I.D..
The manifold nut thread is .335" deep/long with a relief of 1.430" O.D.,
Then you have the threads that enter the cylinder.
don

okey, thanks for the info
Decided to take up the wl nipples to 32mm instead of the trouble with machining.
But as im going to use stroker plates under the cylinders i have to make a new intake manifold.
Does anybody know the outside diameter of the original intake, want to make one that i can use the original intake nuts with?

Found my notes for the last WL Y-intake I opened up:
Id: 33.0mm/1.299 inch
Od: 36.1mm/1.421inch, this is the spigot cut for the PEEK seals
Throat 35.2mm/1.386inch. Have installed a 36 Mikuni VM on this bike.
Did braze to add to the thickness just for safety, although I never cut into it from the inside.
GuS