Some later A bodies that use smaller thermostat neck

[70Hardtop]

Hi, I have bought a Mopar M1 inlet for my Valiant Dodge ute (pickup) 273 and it is the later style that uses the smaller thermostat housing, I think you call them water neck. We didn't get these later 318 intakes on our cars, Chrysler Australia stopped in 1982. These intakes are for 1990 on, I think.

I need to buy a top radiator hose to fit the smaller neck and also fit the radiator top connection.

Can anyone tell me some model mopar cars that used this later water neck? So I can look up the hose, as it is too difficult to try and find that particular hose without a model.. And I don't know your model cars around that time.

Thanks

 

[diymirage]

any chance to find a waterneck that fits the hose and intake ?

 

[Darter6]

The smaller water neck and thermostat on the later 318's is the same size as the Slant Six. Try looking up a hose for a Ram pick-up truck V8 from the 80's. I got a upper hose for a Dodge Ram 1988 D250. It was longer on the radiator end I cut about 5-6'' off. Water neck too. Hope you have Rams from that vintage it your neck of the woods !

 

[Darter6]

Chrysler (Mopar Performance) # P4452025 is the number for the small water inlet neck.

 

[70Hardtop]

The smaller water neck and thermostat on the later 318's is the same size as the Slant Six. Try looking up a hose for a Ram pick-up truck V8 from the 80's. I got a upper hose for a Dodge Ram 1988 D250. It was longer on the radiator end I cut about 5-6'' off. Water neck too. Hope you have Rams from that vintage it your neck of the woods !

Thanks for that lead, I'll do some searches for that truck. Good if it's a bit long, better than being too short. No we didn't get those Rams but I can get most parts imported from the US.

 

[70Hardtop]

Chrysler (Mopar Performance) # P4452025 is the number for the small water inlet neck.

I have the thermo housing, as I said, (bought that from Summit), it's the top radiator hose that I need. If I can find a few models of cars that used that later neck, then I can do a search and find one that might fit my car.

 

[Darter6]

Does your car have A/C ? There will be 2 part numbers because the upper hose has to clear the A/C compressor .

 

[James Camp]

i got one from a 1990 ramcharger at pull a part

 

[70Hardtop]

No I don't have air con. I looked at the Summit racing website, as you know their parts have an 'Application' tab. So I went to the M1 intake page and clicked on Applications and they have years listed there going up to 1991. But i this useless because all it does is give a range of years for Dodge (1967-1991) or Chrysler (1967-1990) etc. Not much help.

I have attached some pictures of an identical engine bay layout from my Charger of many years ago. You can see the shape of the hose. I need the same as this EXCEPT that one end needs to be smaller to fit the smaller water neck. This might be a hard task, as the hose needs to be normal (earlier) size to fit the radiator outlet but small at the other end for the smaller water neck

 

[70Hardtop]

Problem solved! There are different sized necks, some with a sealing band, some smooth. But the difference is not enough to cause issues with the older rad hose size.