Help please finding the name of a component on a Black Five

[Deano]

Cutting a long story short, I'm scratch building two Black Fives in 7mm for fun.

 

Now I think the component circled is going to be particularly difficult to hand make, so I'm mithering whether to buy an existing casting from someone.

 

Question 1:

 

What is the part called circled in the picture? (picture courtesy of Brassmasters).

 

Question 2:

 

Anyone know anywhere that just hapens to sell this part before I make a lot of phone calls.

 

Thanks for any help and assistence in advance.

[Western Star]

I know the part as a "valve crosshead guide".

 

As to a source, how about finding a supplier of the appropriate etch metal kit.... and then being cheeky by asking if they will sell the castings.

[Deano]

Thank you sir!!!

 

I think Laurie Griffin does them looking at his casting brochure... now where's my cheque book.