n8dogg

Can some one point me in the right direction for a quality 160 deg thermostat. I see some are available with out the housing. For simplicity I'd like to buy one with the housing.

Thanks!

James92

I think the hypertech comes with the housing.

Dennis Wilson

It does, Thats what I have.

MTPZ06

SLP makes one too.

n8dogg

thanks guys, I'll look around for the hypertech.

n8dogg

OK now I am confused. Does anyone know if they changed the thermostat design in 2004? They all list 97-03 and say will not fit 04 model. Then they offer 04-10 with the thermostat separate from the inlet pipe. I can't remember if I have ever changed one on an 04 so I do not know if its part of the pipe or not.

MTPZ06

Yes, it did change in 04...they started using a new water pump design that they carried forward to the C6's. What I don't know is if this is true for ALL 04's, or only for later production date 04's. You might need to do some searches on this.

n8dogg

Hmm, I will call the dealer and see whats up. Thanks!

CBackous

Any update on this? I am looking to go to a 160 Tstat with my 04 and also noticed on Mid america motorworks they just have the Tstat without the housing

n8dogg

Not yet, I'll jot down my VIN and give parts a call tomorrow. Hang tight!

madman91

you can get a 160 stat with the housing from auto zone for $35 bucks. hope this helps you!

n8dogg

Well I talked to the Chevy Dealer parts dept. and according to their parts explosion it lists the thermostat separate from the water inlet pipe.

CBackous

Yesterday I compared mine with my buddies 03 and you can see the difference.

Glad to see the dealer confirms it as well

n8dogg

Well I ordered the one from Auto Zone. Costs a fraction of the SLP or Hypertech. We will see.

CBackous

This is my plan. a 160 degree Tstat is a 160 degree Tstat

LS9Drew

04 is different, u reuse the stock housing and change out the inner part. like on a ls2

n8dogg

Ended up being incorrect. The genius behind the phone used a 2000 Corvette thinking all C5's were the same. Came as an assembly with housing, and did not show a listing for an Alt. temp thermostat for the 2004.
Looks like you are correct.

musicmankeb

I would be looking for a 170* T-stat instead, 160 is too cold, your oil does not get hot enough and you also will have a lot of variation in temperature especially when your cruising and then you come to a stop light. Get your fans adjust with the 170* and you should be as good as gold

CBackous

for you boys up in the Northeast this might not be a bad idea. I guess it depends on the weather you drive in and how cold it gets.

musicmankeb

No, this applies anywhere. Cooler is not always better, I would look into this more before you ignore what I said. Look up the sweet spot.