I have a real bad leak coming from this unknown part on my '95 LT1 3.4L Camaro, it's so bad that If I crank it water will start to squirt out of a crack in the part. I went to some auto parts stores to see if they had the part and they didn't know what it was. I was told to go to visit a GM shop, but the shop around my area tends to rip you off and I want to opt for a cheaper online source. The part sits under the Throttle Body and above the water pump.

Also Pricing and store links would help.
Here's some pics

 

looks like the thermostat cover gasket is leaking so the heater hose end is leaking. are u sure its not the connection

 

shows in my book, 93 3.4, as the heater inlet pipe. part #10189204 and the other part is the heater inlet hose nipple (quick connect) part #10224561
u might try disconnecting the pipe and having a look to see if its connected all the way. could be its not quite in there.