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Free Shipping 6847-4090 6.1 Small Block Mopar Hemi Gen Iii Fx Series +4cc Dome Top Gen Iii Hemi Forged Piston Set 4.090 Inch Bore Pin Dia.: 0.927" Comp Height: 1.21" Best Choice [fUnrWQpA]

$59.99 $191.99 -69%

Superior Performance for Mopar Hemi Gen III EnginesIntroducing the 6847-4090 6.1 Small Block Mopar Hemi Gen III FX Series +4cc Dome Top Gen III Hemi Forged Piston Set, a premium choice for those seeking unparalleled performance and reliability for th

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Superior Performance for Mopar Hemi Gen III Engines

Introducing the 6847-4090 6.1 Small Block Mopar Hemi Gen III FX Series +4cc Dome Top Gen III Hemi Forged Piston Set, a premium choice for those seeking unparalleled performance and reliability for their Mopar Hemi Gen III engines. This set is designed to enhance the power and efficiency of your engine, making it an ideal upgrade for both street and race applications. With its +4cc dome top design and high-quality forged pistons, this set promises to deliver exceptional performance and durability.
  • Forged Piston Construction: Ensures strength and resilience, providing long-lasting performance.
  • +4cc Dome Top Design: Increases compression ratio for more power and efficiency.

Robust Specifications and Technical Details

The 6847-4090 6.1 Small Block Mopar Hemi Gen III FX Series +4cc Dome Top Gen III Hemi Forged Piston Set features a 4.090-inch bore, a 0.927-inch pin diameter, and a 1.21-inch comp height. These specifications are carefully designed to fit a 376 Small Block Mopar Hemi Gen III, FX engines with precision. The pistons come with full-floating or press-fit options, allowing for a custom fit to your specific engine requirements. The ring groove measurements of 1.2/1.2/3MM ensure proper sealing and reduced wear, while the stroke and rod length provide a perfect balance for optimal engine performance.
  • Comp Height: 1.21 inches for increased compression ratio.
  • Pin Diameter: 0.927 inches for secure piston fitment.

Perfect for Enthusiasts and Professionals Alike

Whether you're a dedicated enthusiast looking to upgrade your Mopar Hemi Gen III engine or a professional mechanic in need of top-notch components, the 6847-4090 6.1 Small Block Mopar Hemi Gen III FX Series +4cc Dome Top Gen III Hemi Forged Piston Set is a perfect choice. Its robust design and high-performance capabilities make it suitable for a wide range of applications, from daily driving to high-performance racing. With an approximate compression ratio of 65cc-12.06, 74cc-10.79, and 85cc-9.59, this piston set can significantly enhance the power output of your engine, providing a smooth and thrilling driving experience.
  • Engine Type: Mopar Hemi Gen III, FX
  • Applications: Ideal for both street and racing applications.

What Our Customers Say

December 31, 2025

Absolutely no complaints!

The performance is outstanding. It is a top-tier, quality product.

- Greta M..

December 31, 2025

Absolutely no complaints!

It's a very high-quality item that feels like a long-term investment.

- Yara B..

December 31, 2025

Absolutely no complaints!

It's a very well-made and powerful item. I love it.

- Poppy P..

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