Aluminum LT4 Thermostat housing

Bangkok_ZL1 · 01-19-2024, 11:53 PM

Does anybody know where to get an Aluminum Housing that takes the LT Thermostat. I'd really like to change out my plastic piece especially since I got spacers for the supercharger. However, damn near everybody has the housing that uses the LS Thermostat, and I already have a Brand new low temp Thermostat for the LT4 stock housing.

SOCAL.M6.ZLE · 01-20-2024, 06:56 AM

Here you go... I got mine from DMS. Fit and looks great.

https://dedicatedmotorsports.com/pro...t-engines.html

Joshinator99 · 01-20-2024, 07:45 AM

Quote:

Originally Posted by SOCAL.M6.ZLE

Here you go... I got mine from DMS. Fit and looks great.

https://dedicatedmotorsports.com/pro...t-engines.html

That uses the LS3 thermostat, not the LT. OP wants to use his LT thermostat.

OP: every aftermarket aluminum thermostat housing uses the LS thermostat. Sorry!

ZLRob · 01-20-2024, 11:11 AM

Quote:

Originally Posted by Joshinator99

That uses the LS3 thermostat, not the LT. OP wants to use his LT thermostat.

OP: every aftermarket aluminum thermostat housing uses the LS thermostat. Sorry!

This right here.

They don't make LT aluminum housing stats because the LT design sucks. That's just really all there is to it. Lol.

Joshinator99 · 01-20-2024, 12:48 PM

Quote:

Originally Posted by ZLRob

This right here.

They don't make LT aluminum housing stats because the LT design sucks. That's just really all there is to it. Lol.

Guess that was a better explanation lmao!

GreenZLE · 01-20-2024, 01:53 PM

The T-stat that comes with some of these housings as well as one design from MotoRad can stick closed. I bought my housing stat combo from AMP. The neck for the big hose is machined a bit too small so the factory hose clamp has to be replaced for a screw type so you can get enough clamping force to prevent leaks.

There's another thread on here about t-stat problems with aftermarket necks BTW. I installed mine a week before a HPDE day, drove it several days, and it was OK for the first 2 race sessions. 3rd session after 2 laps into the 3rd session it stuck, then opened when I let off the car and the temp went down, ran another lap and it stuck again. I had brought the original GM with me so I swapped it out and everything was fine. From what I could find on the other thread, the Factory GM LS3 is the stat to use. I havent bought one yet though.

If you look at the pick of the bottom of the t-stat in that link, you can see the stat is cupped with what looks to be stand offs formed on it. The other moto-rad design for a 2006 GTO is a flat piece with several holes punched into it.

Moto-Rad makes 2 slightly different designs of these t-stats. I didnt try the one with the flat disk with holes in it.

Revalot · 01-20-2024, 03:58 PM

You can get LT4 aluminum thermostat housing for under $100 bucks all day long. Type in LT4 thermostat housing on Google .

Tay · 01-25-2024, 10:28 PM

Quote:

Originally Posted by Bangkok_ZL1

Does anybody know where to get an Aluminum Housing that takes the LT Thermostat. I'd really like to change out my plastic piece especially since I got spacers for the supercharger. However, damn near everybody has the housing that uses the LS Thermostat, and I already have a Brand new low temp Thermostat for the LT4 stock housing.

I think I found one: https://radrides.com/product/lt1-lt4...ostat-housing/

ZLRob · 01-26-2024, 11:10 AM

Quote:

Originally Posted by Joshinator99

Guess that was a better explanation lmao!

All of my explanations are educational and informative! It's just that some are better than others is all.

Joshinator99 · 01-26-2024, 12:20 PM

Quote:

Originally Posted by Tay

I think I found one: https://radrides.com/product/lt1-lt4...ostat-housing/

I don’t see a nipple for the overflow tank…?

Quote:

Originally Posted by ZLRob

All of my explanations are educational and informative! It's just that some are better than others is all.

2018ZL1 · 01-26-2024, 12:54 PM

Cordes has one.

https://cordesperformanceracing.com/...w-160-element/

Joshinator99 · 01-26-2024, 01:26 PM

Quote:

Originally Posted by 2018ZL1

Cordes has one.

https://cordesperformanceracing.com/...w-160-element/

That’s the standard AMP housing that uses the LS3 tstat as mentioned above… OP wants to use the OE style LT thermostat.

2018ZL1 · 01-26-2024, 02:23 PM

Quote:

Originally Posted by Joshinator99

That’s the standard AMP housing that uses the LS3 tstat as mentioned above… OP wants to use the OE style LT thermostat.

Gotcha... I need to open my eyes a bit more!

CalgaryZL1 · 01-26-2024, 03:33 PM

Does anybody know the part number for the factory GM LS3 thermostat? I would like to order one as a spare on hand in case the motorad 180 craps out. Thanks.

01-19-2024, 11:53 PM	#1
Bangkok_ZL1 ZL1 Believer Drives: 2019 Camaro ZL1 Join Date: Oct 2020 Location: Bangkok, Thailand Posts: 532	Aluminum LT4 Thermostat housing Does anybody know where to get an Aluminum Housing that takes the LT Thermostat. I'd really like to change out my plastic piece especially since I got spacers for the supercharger. However, damn near everybody has the housing that uses the LS Thermostat, and I already have a Brand new low temp Thermostat for the LT4 stock housing.

01-20-2024, 06:56 AM	#2
SOCAL.M6.ZLE Having FUN in the SUN... Drives: 2022 M6 ZL1 1LE Join Date: Jan 2022 Location: San Diego CA Posts: 1,052	Here you go... I got mine from DMS. Fit and looks great. https://dedicatedmotorsports.com/pro...t-engines.html __________________ 2022 M6 ZLE: Katech CNC Ported Blower + Ported Heads + 103mm TB + Oil Pump + C5R Chain + Valve Covers + Coil Relocation TSP VVT and DoD Delete Covers + LME Chain Guide + DSX Billet Lid + ATI Damper + 9.17" Lower + 2.4" Upper + MM Wild CC Coated ARH + AWE Touring + Magnaflow Center X + E85 + MSD Coils + Banks iDash + JMS Booster + Synergy Fender Tank ALL the RED Rear End BMR Goodies + JRE Terminator Cam Package + Remote Tuning and Moral Support from TED @ JRE BMR Motor Mounts + DMS Front HX + FIC 30's + APEX SM.10's + 305/345 R888R's = 770rwhp 785rwtq @E50 13.5psi

01-26-2024, 12:54 PM	#11
2018ZL1 Drives: 2018 ZL1 A10 NFG Join Date: Feb 2018 Location: Woodbine Md Posts: 655 View My Garage	Cordes has one. https://cordesperformanceracing.com/...w-160-element/ __________________ 2018 ZL1-NFG-A10 New Iron L8T 9.32 147MPH

01-20-2024, 01:53 PM	#6
GreenZLE Drives: 2020 Rally Green ZL1-1LE Join Date: May 2020 Location: Illinois Posts: 325	The T-stat that comes with some of these housings as well as one design from MotoRad can stick closed. I bought my housing stat combo from AMP. The neck for the big hose is machined a bit too small so the factory hose clamp has to be replaced for a screw type so you can get enough clamping force to prevent leaks. There's another thread on here about t-stat problems with aftermarket necks BTW. I installed mine a week before a HPDE day, drove it several days, and it was OK for the first 2 race sessions. 3rd session after 2 laps into the 3rd session it stuck, then opened when I let off the car and the temp went down, ran another lap and it stuck again. I had brought the original GM with me so I swapped it out and everything was fine. From what I could find on the other thread, the Factory GM LS3 is the stat to use. I havent bought one yet though. If you look at the pick of the bottom of the t-stat in that link, you can see the stat is cupped with what looks to be stand offs formed on it. The other moto-rad design for a 2006 GTO is a flat piece with several holes punched into it. Moto-Rad makes 2 slightly different designs of these t-stats. I didnt try the one with the flat disk with holes in it.

01-20-2024, 03:58 PM	#7
Revalot Drives: ZL1/1LE parts added Join Date: May 2018 Location: Somewhere around Texas pines tress and smooth asphalt Posts: 609	You can get LT4 aluminum thermostat housing for under $100 bucks all day long. Type in LT4 thermostat housing on Google .

01-26-2024, 03:33 PM	#14
CalgaryZL1 Drives: 2020 Chevy Camaro ZL1 Join Date: Apr 2023 Location: Calgary Canada Posts: 1,483	Does anybody know the part number for the factory GM LS3 thermostat? I would like to order one as a spare on hand in case the motorad 180 craps out. Thanks.

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