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Thumbnail Filmstrip of 2003-2010 6.0L Powerstroke Exhaust Valve Seat SBI SB1250-15N Images
Maximize the longevity and thermal efficiency of your Ford 6.0L Powerstroke with the SBI Star Series Exhaust Valve Seat (SB1250-15N). In the high-heat environment of a diesel cylinder head, the exhaust valve seat is the critical contact point that allows the valve to dissipate heat into the cooling system. This "smaller inside diameter" design is a strategic choice for performance-oriented rebuilds; by providing extra material, it allows the machinist to custom-profile the seat for optimal airflow and superior sealing. Utilizing SBI’s specialized Star Series material, these seats are engineered to withstand the punishing dry-heat conditions and high pressures typical of the 6.0L Powerstroke's exhaust cycle, preventing the seat recession that often leads to loss of compression.
- Material Grade: Fabricated from Star Series Material, a premium alloy specifically formulated for high-durability and heat resistance in diesel applications.
- Precision Dimensions: Features a 1.2550" exact outside diameter (1-1/4" nominal), a 0.905" inside diameter, and a 1/4" depth.
- Pre-Machined Angle: Supplied with a standard 45-degree angle, providing a precision foundation for final valvetrain seating.
- Custom Fitment: Designed for professional installation; machining is required during cylinder head service to ensure the perfect installed depth and concentricity.
- Application Specific: Sold individually to allow for precise replacement of damaged or worn exhaust positions in Ford 6.0L Powerstroke heads.
Choosing the SBI SB1250-15N means opting for a professional-grade component that prioritizes engine health over "quick-fix" alternatives. Because these seats are manufactured to controlled specifications, they provide the necessary "press-fit" integrity to remain secure under extreme thermal expansion. Whether you are remediating a cracked head or performing a preventive performance overhaul, the Star Series material offers a significant upgrade in wear resistance compared to standard cast iron. By integrating these seats into your next build, you ensure that your Powerstroke maintains the tight tolerances and high-pressure seal required for peak diesel performance and long-term reliability.
Specifications:
Angle: 45
Depth: 1/4
I.D.: 0.905
O.D.: 1-1/4
Exact O.D.: 1.2550
Maximize the longevity and thermal efficiency of your Ford 6.0L Powerstroke with the SBI Star Series Exhaust Valve Seat (SB1250-15N). In the high-heat environment of a diesel cylinder head, the exhaust valve seat is the critical contact point that allows the valve to dissipate heat into the cooling system. This "smaller inside diameter" design is a strategic choice for performance-oriented rebuilds; by providing extra material, it allows the machinist to custom-profile the seat for optimal airflow and superior sealing. Utilizing SBI’s specialized Star Series material, these seats are engineered to withstand the punishing dry-heat conditions and high pressures typical of the 6.0L Powerstroke's exhaust cycle, preventing the seat recession that often leads to loss of compression.
Material Grade: Fabricated from Star Series Material, a premium alloy specifically formulated for high-durability and heat resistance in diesel applications.
Precision Dimensions: Features a 1.2550" exact outside diameter (1-1/4" nominal), a 0.905" inside diameter, and a 1/4" depth.
Pre-Machined Angle: Supplied with a standard 45-degree angle, providing a precision foundation for final valv[...]
Maximize the longevity and thermal efficiency of your Ford 6.0L Powerstroke with the SBI Star Series Exhaust Valve Seat (SB1250-15N). In the high-heat environment of a diesel cylinder head, the exhaust valve seat is the critical contact point that allows the valve to dissipate heat into the cooling system. This "smaller inside diameter" design is a strategic choice for performance-oriented rebuilds; by providing extra material, it allows the machinist to custom-profile the seat for optimal airflow and superior sealing. Utilizing SBI’s specialized Star Series material, these seats are engineered to withstand the punishing dry-heat conditions and high pressures typical of the 6.0L Powerstroke's exhaust cycle, preventing the seat recession that often leads to loss of compression.
- Material Grade: Fabricated from Star Series Material, a premium alloy specifically formulated for high-durability and heat resistance in diesel applications.
- Precision Dimensions: Features a 1.2550" exact outside diameter (1-1/4" nominal), a 0.905" inside diameter, and a 1/4" depth.
- Pre-Machined Angle: Supplied with a standard 45-degree angle, providing a precision foundation for final valvetrain seating.
- Custom Fitment: Designed for professional installation; machining is required during cylinder head service to ensure the perfect installed depth and concentricity.
- Application Specific: Sold individually to allow for precise replacement of damaged or worn exhaust positions in Ford 6.0L Powerstroke heads.
Choosing the SBI SB1250-15N means opting for a professional-grade component that prioritizes engine health over "quick-fix" alternatives. Because these seats are manufactured to controlled specifications, they provide the necessary "press-fit" integrity to remain secure under extreme thermal expansion. Whether you are remediating a cracked head or performing a preventive performance overhaul, the Star Series material offers a significant upgrade in wear resistance compared to standard cast iron. By integrating these seats into your next build, you ensure that your Powerstroke maintains the tight tolerances and high-pressure seal required for peak diesel performance and long-term reliability.
Specifications:
Angle: 45
Depth: 1/4
I.D.: 0.905
O.D.: 1-1/4
Exact O.D.: 1.2550