When installing a Chevy engine, we offer a couple of options depending of the year of your block. Our P/N 716023 temperature bushing will allow you to retain your stock sensor on the GM intake as long as the GM block has a 1/2” bung. The newer GM blocks changed the intake thread size to a smaller thread diameter. On these applications, we offer two options, a upper radiator hose adapter or a adapter bushing for the Gen III's. Both options allows you to retain your vehicles stock temperature sending unit and stock gauge.
The In-Line units are offered in either 1-3/8” or 1-1/2” hose diameter to fit most block and radiator configurations.
P/N 716673A - 1-3/8” with 1/2” sensor hole
P/N 716674 - 1-1/2” with 1/2” sensor hole
The sensor hole is 1/2” which fits the 716023 bushing list above. The bushing to the Gen III block is P/N 716023-LS
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