DSRCAM

iTrader: (3)

does anyone know where i can get a coolant temp sensor from besides the dealer???

Formula413

iTrader: (1)

Not sure what year your car is, but go to this thread to find the actual part number:

https://ls1tech.com/forums/general-maintenance-repairs/336981-lt1-lt4-ls1-ls6-f-body-part-numbers.html

This is what I found there:
LS1 coolant temperature sensor (98) (3-wire sensor: 2 for PCM, 1 for gauge) = 12551708
LS1 coolant temperature sensor (99-02) (2-wire) (AC-Delco #213-953) = 15326388

Then go here and search for it:

http://www.chevyparts.net/partscat.html

I looked up one for a 99-02 LS1 on there and it was about $20 vs a dealer price of $30.