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Its just a dummy port. It senses head temperature. so when you pull it out, just the thread will be exposed. No oil or combustion or anything will leak, just pull it and look.
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Hillside Cycle custom head work
S/E 4.375 forged crank (Darkhorsed)
Axtell 117ci cyls and JE pistons
HP Inc 58/62 t/body 6.2gps inj's S&S tuned induction
TTS tuned by Jd's Cycleworks
S/E billet camplate and billet 3 phase oil pump
Black Boarzilla
Wood's TW9FG cams
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