LT4 Billet Thermostat Housing - Granatelli FTW

D3adch1ld · 10-09-2021, 11:06 AM

For those of you wondering if you should upgrade the thermostat housing to a billet unit... DO IT NOW!!

I was doing some line rerouting around the engine bay and needed to remove the small house on the t-stat housing, but the house was baked in and when I pulled the plastic barb snapped off. Not a big deal to me, as I figured Id just tap the hole and install a bras barb so I picked up what I needed and proceeded to repair it... soon after I realized how brittle the housing really is, the damn thing pretty much kept crumbling with every attempt and lastly I just shoved a hollow tubing and siliconed it in as a temp repair.

I ordered a Granatelli housing with a 180* LS3 T-stat on a Sunday, called on Monday to ensure they shipped asap and they shipped that very afternoon (Kudos Granatelli for the awesome support). However, to my dismay UPS had issues and delivered 4 days after the original estimated date. Finally received the part, super nicely packaged and beautifully finished, the t-stat looks oe grade and expect no issues long term (time will tell).

Finally had a chance to do the swap which went super smooth specially considering I have an XDI fuel pump which uses one of the t-stat bolts for mounting and requires it to be rotated out of the way, so I switch my green belt to an RPM belt on shot.

See the attached images for ilustration.

Ill be logging the for engine temp next week and check for differences.

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Sickspeedkuwait · 10-09-2021, 11:39 AM

Mine fell apart too

Nice upgrade!

D3adch1ld · 10-09-2021, 11:41 AM

Quote:

Originally Posted by Sickspeedkuwait

Mine fell apart too

Nice upgrade!

Thanks, did you go billet as well?

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XXX ZL1 · 10-09-2021, 12:17 PM

I found out the hard way why these exist when I broke a belt! A great upgrade to the plastic unit.

D3adch1ld · 10-09-2021, 12:18 PM

Quote:

Originally Posted by XXX ZL1

I found out the hard way why these exist when I broke a belt! A great upgrade to the plastic unit.

That was a fear of mine as well. Luckily I was home when it happened. Hope you werent to far from yours!

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Colts17ZL1 · 10-09-2021, 04:06 PM

Advanced Modern Performance is better.. it angles the small hose the same at the large hose..

D3adch1ld · 10-09-2021, 08:19 PM

Quote:

Originally Posted by Colts17ZL1

Advanced Modern Performance is better.. it angles the small hose the same at the large hose..

That is a great looking engine bay my friend. I see your point about the angle.

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XXX ZL1 · 10-10-2021, 01:32 AM

Quote:

Originally Posted by D3adch1ld

That was a fear of mine as well. Luckily I was home when it happened. Hope you werent to far from yours!

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It was middle of no where and middle of the day with all my buddies at work. Lol. Got lucky and neighbor drove by. I left the car in a cotton field and went into town and picked up a new one. Made for an eventful afternoon. 😂😂

D3adch1ld · 10-10-2021, 07:45 AM

Quote:

Originally Posted by XXX ZL1

It was middle of no where and middle of the day with all my buddies at work. Lol. Got lucky and neighbor drove by. I left the car in a cotton field and went into town and picked up a new one. Made for an eventful afternoon.

That is insane man. You should make a nice sticky note with your story as a cautionary tail. So glad it worked out at the end.

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Wuiquen · 10-12-2021, 11:19 PM

How many miles are you guys seeing the thermostat housing failing?

D3adch1ld · 10-13-2021, 05:07 AM

Its not a millage thing, more like something that will likely break during service or due to a belt failure.

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AussieTrackrat · 10-13-2021, 05:01 PM

Quote:

Originally Posted by D3adch1ld

Its not a millage thing, more like something that will likely break during service or due to a belt failure.

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Yep.

Spaceme1117 · 10-14-2021, 05:34 AM

They need to fire the asshole who designed this part. Just plain idiocy.

Spaceme1117 · 10-14-2021, 09:40 AM

So to use this metal thermostat housing, you need to use an LS thermostat?

Probably going to order this and just want to make sure I get everything that I need for it.

10-09-2021, 11:06 AM	#1
D3adch1ld Drives: 2019 Camaro ZL1 1LE Join Date: Apr 2019 Location: New York Posts: 180 View My Garage	LT4 Billet Thermostat Housing - Granatelli FTW For those of you wondering if you should upgrade the thermostat housing to a billet unit... DO IT NOW!! I was doing some line rerouting around the engine bay and needed to remove the small house on the t-stat housing, but the house was baked in and when I pulled the plastic barb snapped off. Not a big deal to me, as I figured Id just tap the hole and install a bras barb so I picked up what I needed and proceeded to repair it... soon after I realized how brittle the housing really is, the damn thing pretty much kept crumbling with every attempt and lastly I just shoved a hollow tubing and siliconed it in as a temp repair. I ordered a Granatelli housing with a 180* LS3 T-stat on a Sunday, called on Monday to ensure they shipped asap and they shipped that very afternoon (Kudos Granatelli for the awesome support). However, to my dismay UPS had issues and delivered 4 days after the original estimated date. Finally received the part, super nicely packaged and beautifully finished, the t-stat looks oe grade and expect no issues long term (time will tell). Finally had a chance to do the swap which went super smooth specially considering I have an XDI fuel pump which uses one of the t-stat bolts for mounting and requires it to be rotated out of the way, so I switch my green belt to an RPM belt on shot. See the attached images for ilustration. Ill be logging the for engine temp next week and check for differences. Sent from my SM-F926U1 using Tapatalk

10-09-2021, 11:39 AM	#2
Sickspeedkuwait Drives: '17 ZL1 M6 Join Date: Apr 2021 Location: Earth Posts: 108	Mine fell apart too Nice upgrade! __________________ '17 ZL1 M6 8xxwhp Magnuson 2650

10-09-2021, 12:17 PM	#4
XXX ZL1 Drives: 2024 ZL1 M6 Join Date: Sep 2018 Location: Pace FL Posts: 449	I found out the hard way why these exist when I broke a belt! A great upgrade to the plastic unit. __________________ 2024 Riverside Blue ZL1 M6 Magnuson 2650R, NW 103, Roto Fab Big Gulp Kooks 2 inch LT's, Stainless Works Legend NPP THP Billet Valve Covers, Mighty Mouse Wild CC Signature Forged 20x10.5/20x11.5, BMR springs, BMR Cradle lockout, AAD Billet arms 2023 Vivid Orange ZL1 M6 - sold 2019 Riverside Blue ZL1 A10 - sold

10-09-2021, 04:06 PM	#6
Colts17ZL1 Drives: 17 ZL1 Join Date: Jun 2017 Location: OK Posts: 26	Advanced Modern Performance is better.. it angles the small hose the same at the large hose.. Attached Images __________________ 2017 A10 summit white ZL1 2014 Super-Duty Platinum 1969 C10 Summit White LS 2015 C7Z -SOLD 2007 C6Z(800WHP)- SOLD

10-12-2021, 11:19 PM	#10
Wuiquen Drives: 2018 Hot Red ZL1 Join Date: Nov 2010 Location: Los Angeles, CA Posts: 3,616	How many miles are you guys seeing the thermostat housing failing? __________________

10-13-2021, 05:07 AM	#11
D3adch1ld Drives: 2019 Camaro ZL1 1LE Join Date: Apr 2019 Location: New York Posts: 180 View My Garage	Its not a millage thing, more like something that will likely break during service or due to a belt failure. Sent from my SM-F926U1 using Tapatalk

10-14-2021, 05:34 AM	#13
Spaceme1117 Drives: 2017 Camaro SS, 2011 Corvette GS Join Date: Feb 2019 Location: Erlanger, Kentucky 41018 Posts: 859	They need to fire the asshole who designed this part. Just plain idiocy.

10-14-2021, 09:40 AM	#14
Spaceme1117 Drives: 2017 Camaro SS, 2011 Corvette GS Join Date: Feb 2019 Location: Erlanger, Kentucky 41018 Posts: 859	So to use this metal thermostat housing, you need to use an LS thermostat? Probably going to order this and just want to make sure I get everything that I need for it.

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