SKU: 16071019961

JZ Upper Water Neck with Swirl Pot

Sale price$360.00 Regular price$400.00
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Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 21 - Jul 26

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Description

JZ Upper Water Neck with Swirl PotThe ultimate cooling upgrade for street, drift, and high power JZ builds. Stop fighting trapped air, unstable temps, ugly plumbing, and cramped swap bays. Our Boost House JZ Upper Water Neck combines CFD engineered cooling tech with swap friendly packaging to fix the cooling issues JZ engines are known for. Key Benefits include CFD Engineered Integrated Swirl Pot High velocity internal swirl rapidly separates air from coolant. Eliminates steam pockets

The ultimate cooling upgrade for street, drift, and high-power JZ builds.

Stop fighting trapped air, unstable temps, ugly plumbing, and cramped swap bays.
Our Boost House JZ Upper Water Neck combines CFD-engineered cooling tech with swap-friendly packaging to fix the cooling issues JZ engines are known for.

Key Benefits include

🌀 CFD-Engineered Integrated Swirl Pot 

  • High-velocity internal swirl rapidly separates air from coolant.
  • Eliminates steam pockets in the back of the head.
  • More stable coolant temps under hard driving and long pulls.

❌ Thermostat Bypass Block-Off — Thermostat Delete Recommended

Our design blocks the OEM thermostat bypass port, which forces all coolant through the radiator instead of recirculating directly back into the pump.

➡️ This setup is designed to be used with a thermostat delete.
Using the bypass block-off with a closed thermostat can cause overheating because coolant cannot recirculate during warm-up.

Street Car Options:
We offer two ways to retain controlled bypass flow for street-driven cars:

  1. Use the built-in calibrated bleed option:
    The underside of the block-off includes a dimpled pilot hole.
    You can fully drill this through to create a small, controlled bypass orifice.
  2. Drill the thermostat itself:
    Use our included drill template to add a precise bleed hole through the thermostat.
    This maintains some warm-up flow while keeping temperatures stable.

💧 +0.35L Extra Coolant Capacity

  • Adds ~350 mL to the cooling system.
  • More thermal mass = more stability during drift, track, or high-boost pulls.

🔧 Built for Single Turbo Conversions

  • Integrated single turbo coolant outlet.
  • No more blocking unused twin-turbo ports.
  • Cleaner and more reliable coolant routing.

🔻 Low-Profile, Swap-Friendly Design

  • Clears tight S-chassis, E36/46, and other transplant bays.
  • Perfect for JZ swaps with minimal bonnet clearance.
  • No bonnet spacing, cutting, or bracing modifications required.

🧰 Cleaner Bay + Fewer Leak Points

  • Integrates the swirl pot, neck, and turbo feed into one compact housing.
  • Eliminates tees, adapters, multiple hoses, and messy aftermarket plumbing.
  • Reduced leak points and a far more professional look.

🏁 Track-Proven Cooling Stability

  • Swirl pot sits at the highest point for effortless bleeding.
  • Maintains coolant integrity under high G-forces and rapid temperature swings.
  • Ideal for drift, time attack, drag, and high-power street builds.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 16071019961

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4.5 ★★★★★
Based on 19 reviews
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Product Reviews
C
Verified Purchase
CoCo's Mom
Carnegie, US
★★★★★ 5
My dogs loves this toy
I got a few different toys for them today. I need to go through their toybox and get rid of some of the older ones. I can tell the youngster loves the toys. He has taken them into one of the crates and sat with them. Then he brought them back out. He fell asleep with his head against one of them. He has been playing tug of war with this one. And the older one has been running around with it too. Pup already pulled one eye off of this one. But the toy is intact.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 9, 2020
U
Verified Purchase
unknown user
San Leandro, US
★★★★★ 3
SPOT Bungee Raccoon
Purchased 5/20. Decent dog toy. I have a Chiyorkie and he chews on his toys constantly. The squeakers went after a couple of days and then he pulled them out. I put them in the trash. After about two months he had chewed off the head and pulled the bungee out. The bungee went in the trash. I let him play with head and tail pieces for a while but the head had gotten into bad shape so in the trash it went. That left about a twelve inch piece left. He has been playing with that now about a month. He loved tearing the toy up and I do not really blame the toy. He rips up anything that is made of cloth. The only real issue I have with the toy is the two squeakers. IMO they could cause a choking or bowel blocking hazard. I just happened to catch him chewing on them after he had gotten them back. An old knotted on each end knee sock works just about as well but from then on don't leave your socks laying around. They will be fair game for you pet. lol
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Reviewed in the United States on August 26, 2020
M
Verified Purchase
Mother of 4
Battle Creek, US
★★★★★ 4
Fun but.... doesnt stand up to hard play
A very fun toy. My dog loved it - short term. The bungee broke on Day 1 from pulling. (It is designed to be a tug toy, so I assume it should have lasted longer). After a couple weeks, my dog had pulled it apart. Super fun toy, but not for hard play.
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Reviewed in the United States on October 11, 2024
E
Verified Purchase
Em Wittenbach
Louisville, US
★★★★★ 5
Durable against many rounds of zoomies
Strong bungee cord for sure, and my pup really likes pulling on it and playing tug with it. Originally bought it to encourage him away from underwear and socks, which almost worked. He likes chewing on the feet of the raccoon, so they’ve come off, but the lack of stuffing is wonderful. This is one of the longer lasting toys he’s had, and he’s had it for a couple of months, with its functionality still 100%. This seems to be almost like a toy within a toy, as you’ll still have the band when the rest is gone. Worth the money.
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Reviewed in the United States on February 18, 2021
C
Verified Purchase
Cody Luera
San Leandro, US
★★★★★ 5
Cheap, and durable!
I bought this toy as a cheap temporary toy for my Rough Collie. Well, a month or so later, it's still alive. She has performed a 'squeakerectomy' on it, and it's lost it's springiness, but she still loves it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 21, 2025

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