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storm9c1 · 01-01-2014, 10:38 PM

Yep, temp sensor. Should be 3/8" NPT.

The 1/2" was only used on the older blocks. Not sure why it wouldn't be one of those two sizes. Could be a QA problem if this is a reman.

01-01-2014, 10:38 PM	#4
storm9c1 * That's interesting * Join Date: Oct 2008 Location: Pittsburgh, PA Posts: 2,772	Re: 350 Block Question Yep, temp sensor. Should be 3/8" NPT. The 1/2" was only used on the older blocks. Not sure why it wouldn't be one of those two sizes. Could be a QA problem if this is a reman. __________________ Tom Chevy by day... 1969 Chevy C30 Rollback Tow Truck -- 383 stroker, 4L80E 2011 Chevy Caprice PPV 9C3 6.0L 1995 Chevy Caprice 9C1 1994 Chevy Caprice 9C1 #3 1995 Chevy Caprice Wagon #2 1995 Chevy Impala SS Mopar by night... 1969 Dodge Charger 1972 Chrysler Newport 2dr Hardtop (27K miles) Plus others...