DSS Racing FX Series Forged Piston Set
Fits Most Chrysler / Dodge / Jeep / Ram 6.1L SRT8 Models
1-6806-4075 / 2-6806-4075 / 3-6806-4075 / K1-6806-4075 / K2-6806-4075 / K3-6806-4075
Overview:
The DSS Racing 6.1 Stroker FX Series Forged Piston Set is engineered specifically for the Chrysler, Dodge, Jeep, and Ram 6.1L SRT8 engines, including the 423 Small Block Mopar Hemi Gen III platform. Designed to accommodate a 4.075" bore and a 4.050" stroke, these pistons are ideal for enthusiasts and builders seeking enhanced durability and performance in their stroker engine builds.
These forged pistons offer a precise comp height of 1.09" and feature a -23cc dish top design, allowing for optimized combustion chamber volume and compression ratios tailored to your build. Whether you are upgrading for street performance, track use, or high-output applications, this piston set provides the strength and reliability required for demanding conditions.
Key Features:
Built with performance and reliability in mind, the DSS Racing FX Series pistons include:
- Forged construction for superior strength and durability under high stress
- 4.075" bore size compatible with most 6.1L SRT8 stroker builds
- 23cc dish top design to optimize combustion and compression ratios
- Comp height of 1.09" for precise piston-to-deck clearance
- Ring groove dimensions of 1.2mm / 1.2mm / 3mm for effective sealing
- Pin diameter of .927" with options for full-floating or press-fit installation
- Designed for use with a 4.050" stroke crankshaft and 6.125" connecting rods
- Approximate compression ratios ranging from 8.44:1 to 9.98:1 depending on combustion chamber volume
- Compatible with 65cc, 74cc, and 85cc combustion chambers for flexible build options
Construction & Design:
These pistons are crafted from high-grade forged aluminum alloy, providing an excellent balance of lightweight strength and thermal conductivity. The forging process enhances grain structure and mechanical properties, ensuring the pistons withstand the rigors of high-performance and high-RPM operation.
The dish top design reduces compression to prevent detonation in boosted or high-compression applications, while the precise machining of ring grooves and pin bores ensures optimal ring seal and wrist pin fitment. The option for full-floating or press-fit pins allows builders to tailor the piston assembly to their specific engine requirements.
Installation & Fitment:
The DSS Racing FX Series Forged Pistons are designed as direct replacements for most Chrysler, Dodge, Jeep, and Ram 6.1L SRT8 engines with a 4.075" bore. Installation requires standard engine assembly procedures, including proper ring end gap setting and wrist pin installation based on the chosen pin retention method.
These pistons are ideal for stroker builds using a 4.050" stroke crankshaft and 6.125" connecting rods. Builders should verify clearances and compression ratios based on their specific cylinder heads and deck height to ensure optimal performance and reliability.
What's Included:
- Set of 8 DSS Racing FX Series Forged Pistons
- Wrist pins (full-floating or press-fit depending on SKU)
- Snap rings or pin retainers as applicable
Ideal For:
This piston set is perfect for engine builders and performance enthusiasts upgrading or rebuilding Chrysler, Dodge, Jeep, or Ram 6.1L SRT8 engines. It suits stroker engine projects aiming for increased displacement, improved strength, and reliable power delivery in street, strip, or track environments.
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 6.1 Stroker FX Series Forged Piston Set 4.075" Bore: Fits Chrysler / Dodge / Jeep (05-10)
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1-6806-4075 DSS Racing 05-10 Chrysler / Dodge / Jeep / Ram 6.1L SRT8 Forged Piston Set. DSS Racing's 6.1 Stroker FX Series Forged Pistons deliver exceptional strength and durability for high-performance 6.1L SRT8 engines. Featuring a 4.075" bore and a -23cc dish top design, these pistons optimize combustion efficiency and power output. The full-floating or press-fit pin options and precise ring grooves ensure reliable sealing and reduced friction. Ideal for enthusiasts seeking enhanced engine response and longevity in their Chrysler, Dodge, Jeep, or Ram builds.
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MADE IN THE USA
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DSS Racing FX Series Forged Piston Set
Fits Most Chrysler / Dodge / Jeep / Ram 6.1L SRT8 Models
1-6806-4075 / 2-6806-4075 / 3-6806-4075 / K1-6806-4075 / K2-6806-4075 / K3-6806-4075
Overview:
The DSS Racing 6.1 Stroker FX Series Forged Piston Set is engineered specifically for the Chrysler, Dodge, Jeep, and Ram 6.1L SRT8 engines, including the 423 Small Block Mopar Hemi Gen III platform. Designed to accommodate a 4.075" bore and a 4.050" stroke, these pistons are ideal for enthusiasts and builders seeking enhanced durability and performance in their stroker engine builds.
These forged pistons offer a precise comp height of 1.09" and feature a -23cc dish top design, allowing for optimized combustion chamber volume and compression ratios tailored to your build. Whether you are upgrading for street performance, track use, or high-output applications, this piston set provides the strength and reliability required for demanding conditions.
Key Features:
Built with performance and reliability in mind, the DSS Racing FX Series pistons include:
- Forged construction for superior strength and durability under high stress
- 4.075" bore size compatible with most 6.1L SRT8 stroker builds
- 23cc dish top design to optimize combustion and compression ratios
- Comp height of 1.09" for precise piston-to-deck clearance
- Ring groove dimensions of 1.2mm / 1.2mm / 3mm for effective sealing
- Pin diameter of .927" with options for full-floating or press-fit installation
- Designed for use with a 4.050" stroke crankshaft and 6.125" connecting rods
- Approximate compression ratios ranging from 8.44:1 to 9.98:1 depending on combustion chamber volume
- Compatible with 65cc, 74cc, and 85cc combustion chambers for flexible build options
Construction & Design:
These pistons are crafted from high-grade forged aluminum alloy, providing an excellent balance of lightweight strength and thermal conductivity. The forging process enhances grain structure and mechanical properties, ensuring the pistons withstand the rigors of high-performance and high-RPM operation.
The dish top design reduces compression to prevent detonation in boosted or high-compression applications, while the precise machining of ring grooves and pin bores ensures optimal ring seal and wrist pin fitment. The option for full-floating or press-fit pins allows builders to tailor the piston assembly to their specific engine requirements.
Installation & Fitment:
The DSS Racing FX Series Forged Pistons are designed as direct replacements for most Chrysler, Dodge, Jeep, and Ram 6.1L SRT8 engines with a 4.075" bore. Installation requires standard engine assembly procedures, including proper ring end gap setting and wrist pin installation based on the chosen pin retention method.
These pistons are ideal for stroker builds using a 4.050" stroke crankshaft and 6.125" connecting rods. Builders should verify clearances and compression ratios based on their specific cylinder heads and deck height to ensure optimal performance and reliability.
What's Included:
- Set of 8 DSS Racing FX Series Forged Pistons
- Wrist pins (full-floating or press-fit depending on SKU)
- Snap rings or pin retainers as applicable
Ideal For:
This piston set is perfect for engine builders and performance enthusiasts upgrading or rebuilding Chrysler, Dodge, Jeep, or Ram 6.1L SRT8 engines. It suits stroker engine projects aiming for increased displacement, improved strength, and reliable power delivery in street, strip, or track environments.
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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YEARMAKEMODELSUBMODEL2006 - 2010Chrysler300C6.1L SRT82008 - 2010DodgeChallenger6.1L SRT82006 - 2010DodgeCharger6.1L SRT82006 - 2008DodgeMagnum6.1L SRT82006 - 2010JeepGrand Cherokee6.1L SRT8
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Standard shipping
Free Standard Shipping on orders over $300. Select “Free Shipping” at checkout. *Exclusions apply on oversized and freight items.
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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.
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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 $300. Select “Free Shipping” at checkout. *Exclusions apply on oversized and freight items.
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 | |||||