LS1 water pump to LS2. Thermostat?
10-04-2007, 08:29 PM
#1
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LS1 water pump to LS2. Thermostat? Had to replace my water pump on my 99 Z. When I picked up the new GM pump it was actually the water pump for the LS2. I guess the original pump is now obsoulete and supercedes to the LS2. Here is the issue. my low temp thermostat that I had wanted to install was for the ls1 pump and will not fit/work with the LS2. The new water pump had the stat built into the water neck like the LS1, but all the aftermarket stats for the LS2 pumps looked like drop ins. This is the question. Can the stat in the LS2 water neck be removed for an after market stat. Someone please send me in the right direction. TY....
12-24-2007, 08:23 AM
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same thing happened to me. i yelled at gm for not telling me they sold me an ls2 pump. a new stat is only like $20 but i have a new in box hypertech for ls1 i paid $50. so join the club! all they said was you can send it back .oh THANK YOU SOOOO MUCH! (GM PARTS)
