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Thumbnail Filmstrip of 5.9|3.9 Cummins Exhaust Valve Spring SBI 160-1650 Images
The SBI Exhaust Valve Spring 160-1650 is a high-performance necessity for maintaining the valvetrain integrity of the legendary Dodge 5.9L and 3.9L 4BT diesel engines. In a diesel environment, the exhaust valve spring faces the dual challenge of high heat and the need to snap the valve shut against significant exhaust backpressure. This SBI spring is engineered to provide the precise seat pressure required to prevent "valve bounce," ensuring that your engine’s timing remains flawless even under heavy load. By restoring the original tension levels, you ensure that your combustion chamber remains perfectly sealed, preserving the torque and fuel efficiency these engines are famous for.
- Elite Alloy Composition: Forged from a specialized blend of chrome silicon, chrome silicon vanadium, and chrome silicon vanadium nickel for maximum resistance to fatigue and high-temperature sagging.
- Thermal Stability: Each spring undergoes a rigorous stress-relief and heat-treatment process, which stabilizes the metal's molecular structure to provide an exceptionally long service life.
- Precision Load Retention: Specifically manufactured to minimize "load loss," ensuring the spring maintains its rated tension through millions of compression cycles without weakening.
- Advanced Manufacturing: Produced under strict quality control standards using state-of-the-art technology to guarantee every spring meets exact dimensional and performance specifications.
- Custom Build Support: Sold individually, giving you the flexibility to replace a single fatigued spring or source a complete set for a full 8-valve or 12-valve exhaust overhaul.
Choosing the 160-1650 is a strategic investment in your engine’s longevity and performance. Because the exhaust valves are subjected to the hottest gases in the engine, the springs that control them are prone to "softening" over time, which can lead to catastrophic valve-to-piston contact if left unaddressed. SBI’s use of premium vanadium and nickel alloys ensures that these springs can withstand the relentless thermal cycling of a working diesel. Whether you are conducting a routine top-end refresh or a complete performance rebuild on your 4BT or 5.9L Cummins, these springs provide the professional-grade reliability and high-tension security needed to keep your engine running strong for the next million miles.
Specifications:
- I.D: 0.947
- O.D: 1.434
- Length: 2.875
- Barrel Shaped
- Solid Height: 1.316
- Wire Diameter: 0.187
- Open Pressure: [email protected]
- Closed Pressure: [email protected]
- Coils / Turn Direction: 7.00 RH
Note:
- Qty of 6 exhaust valve springs required for 5.9L 6BT.
- Qty of 4 exhaust valve springs required for 3.9L 4BT.
The SBI Exhaust Valve Spring 160-1650 is a high-performance necessity for maintaining the valvetrain integrity of the legendary Dodge 5.9L and 3.9L 4BT diesel engines. In a diesel environment, the exhaust valve spring faces the dual challenge of high heat and the need to snap the valve shut against significant exhaust backpressure. This SBI spring is engineered to provide the precise seat pressure required to prevent "valve bounce," ensuring that your engine’s timing remains flawless even under heavy load. By restoring the original tension levels, you ensure that your combustion chamber remains perfectly sealed, preserving the torque and fuel efficiency these engines are famous for.
Elite Alloy Composition: Forged from a specialized blend of chrome silicon, chrome silicon vanadium, and chrome silicon vanadium nickel for maximum resistance to fatigue and high-temperature sagging.
Thermal Stability: Each spring undergoes a rigorous stress-relief and heat-treatment process, which stabilizes the metal's molecular structure to provide an exceptionally long service life.
Precision Load Retention: Specifically manufactured to minimize "load loss," ensuring the spring maintains [...]
The SBI Exhaust Valve Spring 160-1650 is a high-performance necessity for maintaining the valvetrain integrity of the legendary Dodge 5.9L and 3.9L 4BT diesel engines. In a diesel environment, the exhaust valve spring faces the dual challenge of high heat and the need to snap the valve shut against significant exhaust backpressure. This SBI spring is engineered to provide the precise seat pressure required to prevent "valve bounce," ensuring that your engine’s timing remains flawless even under heavy load. By restoring the original tension levels, you ensure that your combustion chamber remains perfectly sealed, preserving the torque and fuel efficiency these engines are famous for.
- Elite Alloy Composition: Forged from a specialized blend of chrome silicon, chrome silicon vanadium, and chrome silicon vanadium nickel for maximum resistance to fatigue and high-temperature sagging.
- Thermal Stability: Each spring undergoes a rigorous stress-relief and heat-treatment process, which stabilizes the metal's molecular structure to provide an exceptionally long service life.
- Precision Load Retention: Specifically manufactured to minimize "load loss," ensuring the spring maintains its rated tension through millions of compression cycles without weakening.
- Advanced Manufacturing: Produced under strict quality control standards using state-of-the-art technology to guarantee every spring meets exact dimensional and performance specifications.
- Custom Build Support: Sold individually, giving you the flexibility to replace a single fatigued spring or source a complete set for a full 8-valve or 12-valve exhaust overhaul.
Choosing the 160-1650 is a strategic investment in your engine’s longevity and performance. Because the exhaust valves are subjected to the hottest gases in the engine, the springs that control them are prone to "softening" over time, which can lead to catastrophic valve-to-piston contact if left unaddressed. SBI’s use of premium vanadium and nickel alloys ensures that these springs can withstand the relentless thermal cycling of a working diesel. Whether you are conducting a routine top-end refresh or a complete performance rebuild on your 4BT or 5.9L Cummins, these springs provide the professional-grade reliability and high-tension security needed to keep your engine running strong for the next million miles.
Specifications:
- I.D: 0.947
- O.D: 1.434
- Length: 2.875
- Barrel Shaped
- Solid Height: 1.316
- Wire Diameter: 0.187
- Open Pressure: [email protected]
- Closed Pressure: [email protected]
- Coils / Turn Direction: 7.00 RH
Note:
- Qty of 6 exhaust valve springs required for 5.9L 6BT.
- Qty of 4 exhaust valve springs required for 3.9L 4BT.