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Old 07-09-2019, 03:29 AM   #17
Pontiac1976
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Join Date: Oct 2015
Location: Ottawa, Ontario, Canada
Posts: 750
Re: Cannot find correct coolant temp sending unit

Have you tried a down open plug down sizer on your block that will fit the sensor (but the open end down sizer has to let the sensor go throw so the sensor tip is in the water in the block). So it will read the temp. make sure down sizer is pipe tread(taper) if not then use Thread seal tape (also known as PTFE tape, Teflon tape, or plumber's tape) to the block only.
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1977 REG cab Long Bed with a 1984 Front Clip, 82 305 .60 over 9.0.1 flat top pistons, 4bbl, TH350, w/84 SS-intake & cam , w/ 1977 big block rad, 1975 gear box, 1984 master w/ metric fittings top & SAE fitting @ portion block, 1975 3.42 gear open diff. Duel 77-87 Factory air cleaner, duel inlet from rad support . Down sized 9' to new 8' Steel flat bed
Was a 77 454 w/308 gear. Taken out 550 lbs. up front with motor clip change.
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