Zakman Posted September 12, 2022 Share Posted September 12, 2022 (edited) Leave this to the experts, looking for a water fitting that fits into the head as shown. Any leads as the a part number and nomenclature of this fitting. Looking to buy one if anyone has one laying around. The next questions is that the hole has no treads so what keeps it and makes it a water tight fit? Edited September 18, 2022 by Zakman (see edit history) Link to comment Share on other sites More sharing options...
jpage Posted September 12, 2022 Share Posted September 12, 2022 On my '36 Dodge that hole you have circled is plugged with a freeze plug. The heater valve should go into that plugged outlet between the last spark plug hole and the far right rear head bolt. On my Dodge it's actually marked "HEATER" in raised letters. Link to comment Share on other sites More sharing options...
Zakman Posted September 13, 2022 Author Share Posted September 13, 2022 Yes, sir, you are correct. Off to find a freeze plug that fits. Cheers Link to comment Share on other sites More sharing options...
DFeeney Posted September 13, 2022 Share Posted September 13, 2022 I would post future Plymouth related post under Plymouth. You will get a better response. Link to comment Share on other sites More sharing options...
Zakman Posted September 15, 2022 Author Share Posted September 15, 2022 Sorry, new to this group. Will do. Link to comment Share on other sites More sharing options...
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