vettezuki

iTrader: (8)

I have an LS in my C3 (82) Corvette. The coolant gauge reads way higher than it actually is. Is there an adapter for the sending unit that lets you put a Gen I sending unit in the Gen III, or some other solution?

rockytopper

You can install a temp sensor in the passenger side head at rear outbd side of the head, There is a plug there to the water jacket. Some people drill that plug and install the sensor or equis makes a metric adapter kit that fits most sending units that will screw into the head. Leave the factory unit for the pcm. I seem to remember there is a solution using the factory unit but I do not recall what it is. good luck
Rocky

G-Body

iTrader: (4)

I cut my factory temp sender down and rethreaded it to fit the extra hole in the pass head.

bczee

iTrader: (12)

The factory one may be a large dia one (3/8" NPT?). if it is, it would be to big to use a adapter for the Passenger side head or even drilling and tapping, would be very close to the Exh Manifold.

You can do what G-Body did, turn it down and rethread it to metric 12mm (?)

I might also fit in the Water pump flat spot or a Tee in the Rad hose.

Each of the location will give you a differnent Temp reading. Just have to remember that.

techrunner

iTrader: (4)

or i believe you can just replace the one in the left front of the engine with on e from a 1998 camaro, it has a 3 wire connector: two to the pcm and one for your gauge