
02-18-2016, 09:02 PM
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CC Member
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Join Date: Apr 2012
Location: Bay Area (Peninsula),
CA
Cobra Make, Engine: ERA 427, 427/487 side-oiler
Posts: 1,248
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Not Ranked
1/4" NPT makes a ton of sense but I don't think that's it. The OD of the smaller thread on the sender itself measures 0.619". 1/4 NPT = 0.540", and 3/8 NPT = 0.657". So what could it be?
SAE inverted flare?
Edit: Actually, I think it's just 5/8-18. Summit has sender adapters for mechanical senders in this size.
Last edited by lippy; 02-18-2016 at 10:32 PM..
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