This listing is for the photographed item shown, and described in the title.  There are other choices shown below, listed separately under that part number. 

For the purposes of these spacers and gaskets it appears that HIF44 , HIF6, HD6 and HS6 will all use these directly. HIF38 I believe can, but the middle hole is too big of course. HIF4 seems to use the same gasket as HS4. 

Therefore, the following spacers (and HiQ gasket) will fit HS6, HIF6, HIF44, HD6... and HIF38 to some extent..

They range in price from the sublime to the ridiculous.  

There is an exact gasket for this spacer FUL212 $4 in my shop

1 3/4 " HiQ gasket 112867 about $5

1 3/4" spacer 112866 8mm (or 5/16") thick about $19

1 3/4" spacer 610849a 7mm thick about $34

1 3/4" spacer HiQ 12b561 inbuilt gasket 13mm thick about $119

1 3/4" spacer with vacuum pipe mfa446 7.5mm thick about $34

Note the keywords may sometimes attract certain cars,  but the carb is (obviously) the most important aspect... 

To look for items in my shop, the easiest way is to save any one of MY 2000 items in your watchlist... Then,  whenever you want to peruse my 2000 items... simply click on the hyperlink called “visit store” at the top right of this item.  That will take you to a page with my 50 store categories... click the category,  and that category will be displayed with photos on the right... thus a “window-shop”.

Plodding through the Ebay mire of the general search box... or the “see other items” hyperlink  is simply the way to insanity.

If you’re using Ebay’s useless mobile app, I’m sorry... I have no idea how you will find them… this app is a real shocker/compromise in quality and half the stuff is missing. Go to your PC is my advice.

SHOP-category examples “ALTERNATORS” or  "BRAKE"   or   “badges” or "TRAFFICATOR parts"   or "LIGHTS"   or   "AXLES"   or   "COOLING"  or “SWITCHES” etc etc