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About ICT Billet
ICT Billet was born from a passion for LS swaps. After tackling our first swap in 2001, we saw the need for better parts and reliable information. In 2014, we launched ICT Billet to provide high-quality, American-made parts that simplify and enhance LS and LT swaps.
We’re dedicated to supporting car enthusiasts with precision-engineered products, detailed installation guides, and world-class service. Thank you for choosing ICT Billet—your partner in making exceptional builds a reality.
LS Cylinder Head Coolant Steam 4 Port Crossover Hose Kit
4 Port Coolant Steam Crossover Hose Kit
Compatible with: all GM LS series engines
- Ties together all 4 coolant steam ports on LS series engines
- Compatible with truck intake manifolds
- Includes:4 orings, 4 bolts, 4 coolant ports, 1 -4AN cross fitting , 1 -4AN tee fitting, and 5 stainless steel, black nylon wrapped hoses
- Not compatible with "car" intakes, such as LS1, LS3, LS4, LS6, LS7 Camaro / Corvette
- Thread sealant NOT included, but required
- Made in Wichita, Kansas from aero-space grade billet aluminum
Premium USA Produced Materials
Our parts are crafted from premium-grade materials, sourced and produced right here in the USA. Designed by experts in our state-of-the-art facility, we use cutting-edge American-made equipment to ensure unmatched quality and durability.
Exceptional Quality
At ICT Billet, quality is our standard. Every part we produce is crafted with precision using advanced manufacturing technologies in our USA facility. Our commitment to excellence ensures unmatched reliability and performance for your engine swap.
Innovation in Development
At ICT Billet, precision is key. Using advanced technology, we laser-scan vehicles to create solid models for perfect fitment every time. Our commitment to research and development ensures our products work seamlessly from the start.
Proudly American Made
Keeping jobs in America is our priority. We use USA-made materials, belt tensioners, metric flange bolts, pulleys, and more. Our focus on American manufacturing means reliable products you can trust.
Your Complete LS Swap Shop
From engine mounts to wiring, ICT Billet is your one-stop shop for LS swaps. We provide everything you need to make your swap smooth, efficient, and professional.
SEMA Proud, SEMA Strong
As a proud member of SEMA, we are part of an elite group of automotive manufacturers. Our dedication to quality and innovation sets us apart, delivering products you can depend on.
Brendon Grimm
2025-08-23 18:20:15
Engine is not running yet but looks to be quality parts. All fittings went together no hassle,make sure to use Teflon on hose to block no need on compression fittings. Works with truck and tbss intake, you will have clearance issues if you want to run a ls1 or ls6 style intake. Over all good product if you do your research.
Customer
2025-07-24 13:34:52
Added this to my 2500HD while doing head gaskets. Fitment seems good. Just remember to get a fitting to connect it to your hose. I ordered a 45 degree -4 AN fitting to connect it to the existing hose.
Juan Carlos urena
2025-07-17 15:11:55
They forgot to thread one of the fitting!! Wasn’t the biggest thing in the world but since I didn’t have a tap it was a big inconvenience since I had to drive down to my local parts store and still spend a extra $25 on parts plus put the effort to fix the mistake. I will admit ICT billet is really good & everything I get from them is always 10/10 but in this case 👎ðŸ½
Ryan
2025-06-09 10:13:18
I was struggling to find a steam port kit to fit under a holley low rise intake and this thing fits perfectly and the quality is far above my expectations absolute win in my book
Kaet Rachelle
2025-05-12 10:54:59
These lines looked incredible. However, they did not properly fit. You had to stretch them too much to get them to fit. The quality seemed extremely nice, but the value of these is not worth the price. We ended up searching on an online resale site to go with a used OEM line instead. I wish I could have used them to see the performance of the lines, but was unable to get that far since I couldn’t use them on my 5.3L engine.
h. home
2025-04-06 11:04:22
Very nice kit with all high quality parts. Fit perfectly underneath a tbss intake manifold. I’m always impressed with ICT parts.
Francisco Rodriguez
2025-02-17 13:29:59
Need to tap out the rear steam vent plugs..
mayday towing
2024-11-27 10:11:31
It’s missing the last part where it goes back to the radiator
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