Heater hose barb/fitting for Edelbrock Air Gap

[66 Restomod]

I need to replace the old rusty heater hose barb on the front of an Edelbrock #7521 air gap manifold. I know the heater hose end is for a 5/8” heater hose, but what is the size and thread pitch for the threaded end? I plan to replace the rusty 90-degree end and the brass insert into the manifold that are there now with a stainless straight or 45-degree barb so it looks better and cleaner. Or maybe I need to keep the brass insert there and just thread the stainless barb into it? Any help is appreciated on which barb/fitting size I need and whether I need to keep the brass insert with a stainless barb/fitting. Thanks!

 

[D.Hearne]

The thread size is either 3/8" or 1/2" NPT. Fittings can be located at any Lowes, Home Depot and many other hardware stores.

 

[66HertzClone]

I used this fancy fitting,

Here are the details, Fitting

 

[66 Restomod]

Thanks!

Thanks for the replies. I was actually looking at the same stainless fitting, and a straight one too for the edelbrock water pump... Didn't want to get the wrong size mailed to me.

 

[fvike]

I used an 1/2" NPT to -10 AN fitting, and a -10 AN hose end. Looks good, and it's easily removable if you need to disconnect it.

 

[mustangman1974]

I would be careful of putting stainless steel fasteners on the aluminum intake. it speeds the electrolysis.