Industrial Injection Stage 1 Ported and Polished Cylinder Head With Fire Rings 07.5-18 Ram 6.7L Cummins
SKU: 69368385389

Industrial Injection Stage 1 Ported and Polished Cylinder Head With Fire Rings 07.5-18 Ram 6.7L Cummins

Sale price$2135.67 Regular price$2372.97
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Ships within 48 hours · Estimated delivery Jul 7 - Jul 12

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Description

Industrial Injection Stage 1 Ported and Polished Cylinder Head With Fire Rings 07.5-18 Ram 6.7L CumminsIf you are rebuilding a 6. 7L Cummins and plan on using some aftermarket upgrades, you need an engine that can handle the extra power you have planned. Get cylinder heads that are built for performance with Industrial Injection's Stage 1 Ported and Polished Cylinder Head With Fire Rings. These cylinder heads are what you need to make sure your engine is ready to push it's limits. NOTE: Installation of a fire ring gasket requires high yield head studs

If you are rebuilding a 6.7L Cummins and plan on using some aftermarket upgrades, you need an engine that can handle the extra power you have planned. Get cylinder heads that are built for performance with Industrial Injection's Stage 1 Ported and Polished Cylinder Head With Fire Rings. These cylinder heads are what you need to make sure your engine is ready to push it's limits.

NOTE: Installation of a fire ring gasket requires high yield head studs to ensure proper seat of the head to the cylinder block.

Unlock the full performance potential of your diesel engine with the Industrial Injection 6.7L Cummins Performance Cylinder Head. Designed for Ram 2500 and Ram 3500 trucks equipped with the 6.7L Cummins engine, this upgraded cylinder head features precision CNC porting, high-performance valvetrain components, and fire ring groove machining to handle higher boost levels and increased combustion pressure.

Each cylinder head is thoroughly inspected, cleaned, and precision-machined before assembly. The ports are developed using a SuperFlow flow bench and then machined with a 5-axis CNC cylinder head porting machine to ensure consistent airflow across all cylinders. This process helps balance cylinder power, improve airflow efficiency, and support higher horsepower applications.

Precision CNC Porting for Maximum Airflow

The performance gains of this Cummins cylinder head come from its CNC ported intake and exhaust runners. Using advanced CAD/CAM software and a 5-axis machining process ensures that every port flows evenly, which improves engine balance and overall efficiency. After the CNC process is complete, each port is hand blended to optimize airflow and maintain proper casting thickness for long-term durability.

Unlike aggressive porting methods that sacrifice casting strength, Industrial Injection engineers carefully balance airflow gains with structural integrity. This helps prevent cracking caused by the extreme thermal stress often found in high-performance diesel engines.

Built for High Boost Cummins Builds

This ported 6.7 Cummins cylinder head is ideal for trucks running upgraded turbos, injectors, and fueling systems. The improved airflow supports higher horsepower levels while the upgraded valves, guides, and valve seats help ensure long-term durability in demanding diesel performance applications.

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: 69368385389

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Dan K.
Massapequa, US
★★★★★ 5
Bringing a 1976 MG Midget to the modern world!
Material Type: 157mil Closed Cell Foam, Style: 157 mil 36 SqFt
I've been restoring a 1976 MG Midget barn find. I bought some Sinless liner to help make the car rattle less and feel more solid. This product is easy to cut, easy to install, and extremely sticky. I used it to line the trunk, the interior, and even some under the hood of the old MG. The adhesive stands up to the brutal temperature of the engine bay, and when (by accident) some fuel spilled onto the foam, it didn't fall apart or turn to mush. Thanks to Siless, the MG now feels like a modern car. The floor pans feel much more solid, the doors make a heftier thud when you close them, and the trunk no longer sounds like a percussion instrument when you touch it. If you know what you're doing, this product will transform the feel of a car. I found that 36 sq ft was enough for my MG Midget, but for a bigger car I would want more. The pattern on the back helped me to cut perfectly measured squares and rectangles. The foam itself doesn't have a strong odor, it works super well, and has held up to several months of changing temperatures (in the Midwest US.)
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Reviewed in the United States on November 11, 2025
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Mike S.
New York, US
★★★★★ 5
Excellent Car Sound Deadening and Heat Insulation Solution
Material Type: 157mil Closed Cell Foam, Style: 157 mil 36 SqFt
If you're looking for a high-quality car sound deadening and heat insulation material, then the Siless Liner 157 (4 mm) mil 36 sqft is definitely worth considering. This product is designed to offer superior noise reduction and heat insulation for your car, making your driving experience more comfortable and enjoyable. The closed-cell foam material used in this product is of premium quality, and it effectively blocks out external noise and vibrations. This means you can enjoy a quieter and more peaceful ride, even on noisy roads. In addition, the Siless Liner 157 also provides excellent heat insulation, which can help keep your car cooler in hot weather. One of the best things about this product is that it's very easy to install. You don't need any special tools or equipment, and the material can be easily cut to fit any shape or size. It's also very lightweight and flexible, which makes it easy to work with. Overall, the Siless Liner 157 (4 mm) mil 36 sqft Car Sound Deadening Closed Cell Foam & Heat Insulation mat is an excellent choice for anyone looking to improve the comfort and performance of their car. It's a high-quality product that delivers on its promises, and it's definitely worth the investment.
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Reviewed in the United States on March 12, 2023
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Marie Phillips
Lake Worth, US
★★★★★ 4
Heavy-Duty That Works!
Material Type: 157mil Closed Cell Foam, Style: 157 mil 36 SqFt
This extreme sound deadening mat performs well for reducing road noise and vibration. It feels dense and adheres securely when properly applied. Once installed, it noticeably improves interior quietness. Overall, it’s a strong choice for more serious sound insulation projects.
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Reviewed in the United States on May 12, 2026
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J Whitehead
Birmingham, US
★★★★★ 5
Good product, quite sticky I must say.
Material Type: 157mil Closed Cell Foam, Style: 157 mil 36 SqFt
Worked for my van insulation
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Reviewed in the United States on June 1, 2026
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David Spencer
Los Angeles, US
★★★★★ 5
Good stuff
Material Type: 157mil Closed Cell Foam, Style: 157 mil 36 SqFt
Good stuff, easy to use, self adhesive backing contours around curves easily and works great.
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Reviewed in the United States on April 29, 2026

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