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High-quality Je Pistons Ultra Series Gm Gen Iii/iv Ls 4.125in Bore/3.622in Stroke Set Of 8 Pistons Smart Choice [wKgzaDRC]

$55.99 $179.99 -69%

JE Pistons Ultra Series: Engine Performance Mastery Introducing the JE Pistons Ultra Series, a cutting-edge set of 8 Pistons designed specifically for GM Gen III/IV LS engines with a 4.125in bore and 3.622in stroke. This high-performance engine part

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High-quality Je Pistons Ultra Series Gm Gen Iii/iv Ls 4.125in Bore/3.622in Stroke Set Of 8 Pistons Smart Choice [wKgzaDRC]

JE Pistons Ultra Series: Engine Performance Mastery

Introducing the JE Pistons Ultra Series, a cutting-edge set of 8 Pistons designed specifically for GM Gen III/IV LS engines with a 4.125in bore and 3.622in stroke. This high-performance engine part is engineered for power, featuring advanced technology that optimizes the performance of high-horsepower racing engines. The Ultra Series Pistons are the epitome of engineering excellence, offering a perfect blend of durability and efficiency.
  • Aligned Grain Flow Technology: This proprietary forging process maximizes tensile strength, ensuring that your engine withstands the rigorous demands of high-performance environments.
  • Skirt Coating: The innovative skirt coating reduces friction and wear on piston skirts and cylinder walls, minimizing operating noise and enhancing longevity.

Engineered Precision and Advanced Materials

Each Ultra Series Piston is crafted with precision and utilizes advanced materials to deliver unmatched performance. The Thermal Barrier Crown Coating reflects heat into the combustion chamber, reducing piston crown temperatures and improving exhaust gas scavenging. Premium thick-wall wrist pins, manufactured in the USA by Trend Performance, are designed for the demands of high-performance builds. This piston set also includes lateral gas ports to maintain power-producing ring seal at high RPM and high boost conditions, ensuring optimal performance in the most demanding situations.
  • Thermal Barrier Crown Coating: Reduces piston crown temperatures for improved efficiency and longevity.
  • High-Strength Wrist Pins: Engineered for high-performance/power-adder builds, ensuring durability and reliability.

Unmatched Performance for Racing and Beyond

Whether you are a serious racer or an enthusiast seeking to enhance your engine's performance, the JE Pistons Ultra Series is the perfect choice. Made 100% in the USA, these Pistons are built to the highest standards of quality and craftsmanship. With their optimized pin oiling system and innovative skirt coating, these Pistons offer reduced heat, friction, and wear, ensuring peak performance in all conditions. Upgrade your GM Gen III/IV LS engine today with the JE Pistons Ultra Series and experience the power and reliability that only JE Pistons can deliver.

What Our Customers Say

January 18, 2026

Absolutely no complaints!

So very, very, very, very happy with my purchase.

- Leri C..

January 18, 2026

Absolutely no complaints!

The build quality is simply magnificent.

- Gideon P..

January 18, 2026

Absolutely no complaints!

An excellent, and a very, very high-quality product.

- Enfys V..

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