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Old 01-08-2023, 06:47 PM
takid455 takid455 is offline
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Default Heater hose nipple w/ threads

For Iron heads, what are people using to get a thread in the port where the heater hose nipple would go.

Want to install a 90 deg fitting there. I've seen a fellow that makes a press in piece that has a 1/2 npt female threads. That will work in conjunction with a 1/2 npt to 5/8 barb 90. Is he the only one that makes this, other options?

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Old 01-09-2023, 09:29 PM
Goatracer1 Goatracer1 is offline
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Weld a pipe thread fitting to a freeze plug. Drill a hole in plug and install in head.

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Old 01-09-2023, 11:54 PM
t money t money is offline
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I have 2 of them if you want Iíll look for them tomorrow

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Old 01-10-2023, 12:07 AM
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The factory used a 90 degree press-in heater hose fitting on 301 engines, not sure if they’re still available from the dealership parts department or not.

GM part #1609997

Found this one on eBay: https://www.ebay.com/itm/313388842630

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Old 01-10-2023, 01:03 PM
t money t money is offline
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My bad I though he was talking about the fitting to run coolent to the crossover.
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Old 01-16-2023, 09:13 AM
takid455 takid455 is offline
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T Money - Yes that it what I had in mind for the press in part. Won't be doing the cross over , just the heater hose so will need a barb vs AN.

B-Man - Also yes. $60 seems like a bit. Hoping for a lower cost option. Looks like its your link or the fitting that Tmoney shows.

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