Re: 302 Z28 oilsending unit thread
I have never heard of a heli-coil for a pipe thread. I would check the auto-parts store for a straight adapter that is 3/8"-24x 1/8" NPT. There are fittings like that in the brake tubing/fitting cabinets around here.
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Tony
55 Nomad Gasser
70 SS 427 Nova
34 Ford Sedan..Hemi powered
Michigan/ Florida
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