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502 carb raw/open cooling system and thermostat help

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Old 06-07-2023 | 05:39 PM
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Isn't that 3/8 pipe ? 1/2 pipe would be over 3/4 inch in diameter
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Old 06-07-2023 | 06:11 PM
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The two that I already bought, which includes the Autozone one, are probably 1/4" or 3/8" NPT. The port on my intake manifold, and the Datcon that came out of it, are 1/2" NPT, which is indeed a little over 3/4" actual diameter.

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Old 06-07-2023 | 06:29 PM
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Originally Posted by mattyd272
The two that I already bought, which includes the Autozone one, are probably 1/2" or 3/8" NPT. The port on my intake manifold, and the Datcon that came out of it, are 1/2" NPT, which is indeed a little over 3/4" actual diameter.
1/2 sounds right. If you look at the pic of my sender (right of therm housing) it's in an adapter to fit my manifold. The sender was 1/8 pipe. It's works fine.

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Old 06-07-2023 | 06:30 PM
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Previous owner may have accidentally used the overheat alarm sender (old ones look just like temp sender).
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