Mopar Muscle Association UK

But seriously...
We need to get some fittings to attach the heater hoses to our new water pump on the 69 Sport Satellite.
As the car's a 69, the 2 bulkhead hose outlets are both the same size (5/8" ID?)..
As far as i can tell, from 70 onwards, they fitted different size heater hoses.
And the tapped holes in the new (aftermarket?) water pump, are 2 different sizes.
What i'm not sure is, can you get the screw in heater nipples for the w/pump with 2 different thread sizes but the same hose dia?
I can't quite tell from the Year One etc descriptions.

anyone come across this?

To illustrate the question...
First pic is our original engine with heater hose nipples visible, both the same size. I think this was an ally aftermarket housing.
Second pic is the new one but to me it looks like a cast iron housing and has a casting number visible. The plugs fitted in the heater hose positions appear to be different sizes...

Hi Rob/Stu, I bought some off ebay.com and from memory they are the same thread size. Here's a link to Mancini Racing
http://www.manciniracing.com/hehonib.html
Satellite is away in storage so can't go and check just yet. Chris

Thanks Chris. Yes, I found those Mancini parts last nite too. I was going to post but had tinternet probs thanks to Virgin
It's since been suggested by Koffel to use the larger (spare?) hole in which they have fitted a 1/2 NPT plug, and replace that with a 1/2 to 3/8 reducer and 3/8 nipple and connect the hose that would normally go to the position that is currently occupied by a 1/4 NPT plug.

So... does anyone know where to get a 1/2 to 3/8 NPT brass reducing bush?