DSS Racing FX Series Forged Piston Set
Fits Most Chrysler / Dodge / Jeep / Ram 5.7L Hemi Models
1-6700-3927 / 2-6700-3927 / 3-6700-3927 / K1-6700-3927 / K2-6700-3927 / K3-6700-3927
Overview:
The DSS Racing 5.7 Stroker Small Block Mopar Hemi Gen III FX Series Forged Piston Set is engineered for enthusiasts and professional builders seeking enhanced durability and performance in their 5.7L Hemi engines. Designed to fit most Chrysler, Dodge, Jeep, and Ram 5.7L Hemi models, this piston set supports stroker builds with a 4.050" stroke and is ideal for increasing engine displacement and power output.
These forged pistons offer superior strength and reliability compared to stock cast pistons, making them perfect for high-performance street, track, or off-road applications. The set’s precise specifications ensure optimal compression ratios and compatibility with a variety of engine configurations.
Key Features:
Built with advanced engineering and attention to detail, the DSS Racing FX Series Forged Pistons deliver a combination of strength, efficiency, and fitment precision:
- Compatible with 392 Small Block Mopar Hemi Gen III engines
- Comp Height: 1.09" for optimal piston-to-deck clearance
- 1.5cc flat top design for improved combustion efficiency
- Pin diameter: .927" with options for full-floating or press-fit installation
- Ring groove dimensions: 1.2mm top and second rings, 3mm oil ring
- Stroke length: 4.050" to accommodate stroker crankshafts
- Connecting rod length: 6.125" for balanced engine geometry
- Available compression ratios approximately 11.72:1 (65cc), 10.57:1 (74cc), and 9.46:1 (85cc) depending on combustion chamber volume
- Forged construction for enhanced durability under high stress
Construction & Design:
DSS Racing’s FX Series pistons are crafted from high-quality forged aluminum alloy, providing exceptional strength and heat resistance essential for high-performance and forced induction engines. The forging process refines the grain structure of the metal, resulting in pistons that withstand extreme combustion pressures and temperatures without cracking or deforming.
The pistons feature a flat top design with a slight -1.5cc dish to optimize combustion chamber shape and improve flame propagation. Precision-machined pin bores accommodate either full-floating or press-fit wrist pins, offering flexibility for different engine builds. The ring grooves are engineered to maintain proper ring seal and reduce friction, enhancing overall engine efficiency and longevity.
Installation & Fitment:
This piston set is designed to fit most Chrysler, Dodge, Jeep, and Ram 5.7L Hemi engines equipped with Gen III small block Mopar Hemi architecture. Installation typically requires professional engine assembly skills and may involve matching the pistons to compatible rods and crankshafts, especially when building stroker configurations with a 4.050" stroke.
Proper ring end gap and piston-to-cylinder wall clearance must be verified during installation to ensure optimal performance and durability. These pistons are suitable for both full rebuilds and performance upgrades, but it is recommended to consult with a professional engine builder to confirm compatibility with your specific engine setup.
What's Included:
- Set of forged pistons (quantity as per engine requirements)
- Wrist pin options: full-floating or press-fit (depending on SKU)
- Detailed specifications for compression ratio and dimensions
Ideal For:
This DSS Racing forged piston set is ideal for automotive enthusiasts, professional engine builders, and racers looking to upgrade or rebuild their 5.7L Hemi engines with a reliable, high-strength piston solution. It is especially suited for stroker engine builds, high-compression applications, and those seeking improved durability and performance in demanding driving conditions.
DSS Racing — Founded in 1983 originally as Danny’s Speed Shop, DSS Racing has grown from a small Midwest performance engine shop into a respected name in forged engine components for the high-performance and racing markets. Based in St. Charles, Illinois, DSS is best known for its forged pistons and machined engine parts made in the USA that have been used in championship engines and thousands of builds, blending old-school racing roots with precision manufacturing for enthusiasts and racers alike.
DSS Racing FX Series Forged Piston Set: Fits Chrysler / Dodge / Jeep / Ram 5.7L Hemi (02-26)
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1-6700-3927 DSS Racing 05-23 Chrysler / Dodge / Jeep / Ram 5.7L Hemi FX Series Forged Piston Set. Designed for the 5.7 Stroker Small Block Mopar Hemi Gen III, this piston set offers exceptional strength and durability with forged construction. Featuring a -1.5cc flat top design and precise ring grooves, it ensures optimal compression and performance. Compatible with full-floating or press-fit pins, these pistons deliver improved power and reliability for street or race applications. Upgrade your engine with DSS Racing’s high-quality pistons for enhanced efficiency and longevity.
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DSS Racing FX Series Forged Piston Set
Fits Most Chrysler / Dodge / Jeep / Ram 5.7L Hemi Models
1-6700-3927 / 2-6700-3927 / 3-6700-3927 / K1-6700-3927 / K2-6700-3927 / K3-6700-3927
Overview:
The DSS Racing 5.7 Stroker Small Block Mopar Hemi Gen III FX Series Forged Piston Set is engineered for enthusiasts and professional builders seeking enhanced durability and performance in their 5.7L Hemi engines. Designed to fit most Chrysler, Dodge, Jeep, and Ram 5.7L Hemi models, this piston set supports stroker builds with a 4.050" stroke and is ideal for increasing engine displacement and power output.
These forged pistons offer superior strength and reliability compared to stock cast pistons, making them perfect for high-performance street, track, or off-road applications. The set’s precise specifications ensure optimal compression ratios and compatibility with a variety of engine configurations.
Key Features:
Built with advanced engineering and attention to detail, the DSS Racing FX Series Forged Pistons deliver a combination of strength, efficiency, and fitment precision:
- Compatible with 392 Small Block Mopar Hemi Gen III engines
- Comp Height: 1.09" for optimal piston-to-deck clearance
- 1.5cc flat top design for improved combustion efficiency
- Pin diameter: .927" with options for full-floating or press-fit installation
- Ring groove dimensions: 1.2mm top and second rings, 3mm oil ring
- Stroke length: 4.050" to accommodate stroker crankshafts
- Connecting rod length: 6.125" for balanced engine geometry
- Available compression ratios approximately 11.72:1 (65cc), 10.57:1 (74cc), and 9.46:1 (85cc) depending on combustion chamber volume
- Forged construction for enhanced durability under high stress
Construction & Design:
DSS Racing’s FX Series pistons are crafted from high-quality forged aluminum alloy, providing exceptional strength and heat resistance essential for high-performance and forced induction engines. The forging process refines the grain structure of the metal, resulting in pistons that withstand extreme combustion pressures and temperatures without cracking or deforming.
The pistons feature a flat top design with a slight -1.5cc dish to optimize combustion chamber shape and improve flame propagation. Precision-machined pin bores accommodate either full-floating or press-fit wrist pins, offering flexibility for different engine builds. The ring grooves are engineered to maintain proper ring seal and reduce friction, enhancing overall engine efficiency and longevity.
Installation & Fitment:
This piston set is designed to fit most Chrysler, Dodge, Jeep, and Ram 5.7L Hemi engines equipped with Gen III small block Mopar Hemi architecture. Installation typically requires professional engine assembly skills and may involve matching the pistons to compatible rods and crankshafts, especially when building stroker configurations with a 4.050" stroke.
Proper ring end gap and piston-to-cylinder wall clearance must be verified during installation to ensure optimal performance and durability. These pistons are suitable for both full rebuilds and performance upgrades, but it is recommended to consult with a professional engine builder to confirm compatibility with your specific engine setup.
What's Included:
- Set of forged pistons (quantity as per engine requirements)
- Wrist pin options: full-floating or press-fit (depending on SKU)
- Detailed specifications for compression ratio and dimensions
Ideal For:
This DSS Racing forged piston set is ideal for automotive enthusiasts, professional engine builders, and racers looking to upgrade or rebuild their 5.7L Hemi engines with a reliable, high-strength piston solution. It is especially suited for stroker engine builds, high-compression applications, and those seeking improved durability and performance in demanding driving conditions.
DSS Racing — Founded in 1983 originally as Danny’s Speed Shop, DSS Racing has grown from a small Midwest performance engine shop into a respected name in forged engine components for the high-performance and racing markets. Based in St. Charles, Illinois, DSS is best known for its forged pistons and machined engine parts made in the USA that have been used in championship engines and thousands of builds, blending old-school racing roots with precision manufacturing for enthusiasts and racers alike.
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YEARMAKEMODELSUBMODEL2011 - 2024Chrysler3005.7L Hemi2005 - 2010Chrysler300C5.7L Hemi2009 - 2023DodgeChallenger5.7L Hemi2005 - 2023DodgeCharger5.7L Hemi2005 - 2011DodgeDakota5.7L Hemi2004 - 2025DodgeDurango5.7L Hemi2005 - 2008DodgeMagnum5.7L Hemi2002 - 2010DodgeRam5.7L Hemi2005 - 2010JeepCommander5.7L Hemi2005 - 2025JeepGrand Cherokee5.7L Hemi2022 - 2024JeepWagoneer5.7L Hemi2011 - 2024Ram15005.7L Hemi2019 - 2024Ram1500 Classic5.7L Hemi2010 - 2025Ram25005.7L Hemi2011 - 2012Ram35005.7L Hemi
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Compression Ratio Calculator
Calculate your engine's compression ratio and CID
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Features Piston Series E SeriesE SX SeriesSX 1-FX Series1-FX 2-FX Series2-FX 3-FX Series3-FX Broached pin oiling slots Drilled, forced wrist pin oiling Forged drain-back windows Drilled bottom ring land intersecting oil groove drain-backs Slightly larger, deeper valve reliefs than OEM CNC machined valve reliefs for moderate performance heads and cam combinations Larger, deeper CNC valve reliefs for more aggressive cylinder head and cam combinations Premium Aircraft spec. 4032 low expansion alloy Premium Aircraft spec. 2618 alloy Blower, Turbo, NOS ready Brushed piston crown Additional CNC milling for weight reduction Patented "X Groove" skirt for superior cylinder and ring life Thinner/shallower ring grooves for max ring seal Low volume contact reduction grooves 2nd ring land accumulator groove prevents flutter 3rd ring land scraper relief Oil ring groove relief reservoir Inner and outer pin boss weight reduction Tighter crown thickness control for lighter parts Dynamic skirt milling for consistent weight Diamond-turned high strength skirts High-strength piston pins Extreme Duty XR wrist pins Horizontal Gas Ports enhance ring seal Forged and machined in the USA
Standard shipping
Free Standard Shipping on orders over $250. Select “Free Shipping” at checkout.
Free Easy Returns
Need to return an item? We make it easy. Email us and we'll send you a free return label with instructions on how to return.
Compression Ratio Calculator
Calculate your engine's compression ratio and CID
| Features | Piston Series | ||||
|---|---|---|---|---|---|
| E SeriesE | SX SeriesSX | 1-FX Series1-FX | 2-FX Series2-FX | 3-FX Series3-FX | |
| Broached pin oiling slots | |||||
| Drilled, forced wrist pin oiling | |||||
| Forged drain-back windows | |||||
| Drilled bottom ring land intersecting oil groove drain-backs | |||||
| Slightly larger, deeper valve reliefs than OEM | |||||
| CNC machined valve reliefs for moderate performance heads and cam combinations | |||||
| Larger, deeper CNC valve reliefs for more aggressive cylinder head and cam combinations | |||||
| Premium Aircraft spec. 4032 low expansion alloy | |||||
| Premium Aircraft spec. 2618 alloy | |||||
| Blower, Turbo, NOS ready | |||||
| Brushed piston crown | |||||
| Additional CNC milling for weight reduction | |||||
| Patented "X Groove" skirt for superior cylinder and ring life | |||||
| Thinner/shallower ring grooves for max ring seal | |||||
| Low volume contact reduction grooves | |||||
| 2nd ring land accumulator groove prevents flutter | |||||
| 3rd ring land scraper relief | |||||
| Oil ring groove relief reservoir | |||||
| Inner and outer pin boss weight reduction | |||||
| Tighter crown thickness control for lighter parts | |||||
| Dynamic skirt milling for consistent weight | |||||
| Diamond-turned high strength skirts | |||||
| High-strength piston pins | |||||
| Extreme Duty XR wrist pins | |||||
| Horizontal Gas Ports enhance ring seal | |||||
| Forged and machined in the USA | |||||