Your Cart (0)
Thumbnail Filmstrip of 5.9|3.9 Cummins Valve Spring SBI 160-1379 Images
The SBI Valve Spring 160-1379 is a high-performance essential for any Dodge 5.9L or 3.9L 4BT diesel engine restoration. The valve spring is the heartbeat of your valvetrain; its job is to provide the exact closing force required to keep the valves sealed against the high boost and cylinder pressures inherent in a Cummins-powered engine. Utilizing advanced metallurgy and precision engineering, these springs are designed to restore the snappy response and timing accuracy that factory engines lose over millions of heat cycles. By choosing a spring built with specialized alloys, you are ensuring that your engine can maintain its volumetric efficiency and peak power output under the most demanding conditions.
- Premium Material Blend: Constructed from a sophisticated mix of chrome silicon, chrome silicon vanadium, and chrome silicon vanadium nickel for unmatched fatigue resistance and strength.
- Advanced Thermal Processing: Each spring is meticulously stress-relieved and heat-treated, a process that stabilizes the metal to ensure an extended service life and consistent performance.
- Minimized Load Loss: Engineered to resist "sagging" or tension loss over time, which is critical for preventing valve float and ensuring a perfect seal during high-RPM operation.
- Universal Application: Designed for use as either an intake or exhaust spring, providing a standardized solution for a full head rebuild.
- Professional Flexibility: Sold individually, allowing you to replace a single fatigued spring or source a complete set for a full 8-valve or 12-valve overhaul.
Selecting the 160-1379 is an investment in proactive engine protection. Standard springs can weaken over time due to the relentless heat and mechanical stress of a diesel environment, leading to a loss of seat pressure that can cause poor fuel economy or even catastrophic engine damage. SBI’s use of high-tech alloys and strict quality control ensures that these springs meet or exceed OE specifications, providing the "spring-back" force necessary to handle increased boost levels or heavy towing. Whether you are refreshing a legendary 4BT swap or a high-mileage 5.9L workhorse, these springs provide the structural reliability and consistent pressure required for an engine that’s built to last.
Specifications:
- I.D: 0.948
- O.D: 1.320
- Length: 2.385
- Solid Height: 1.400
- Wire Diameter: 0.187
- Open Pressure: [email protected]
- Closed Pressure: [email protected]
- Coils / Turn Direction: 7.60 RH
Note:
- Qty of 12 valve springs required for 5.9L 6BT.
- Qty of 8 valve springs required for 3.9L 4BT.
The SBI Valve Spring 160-1379 is a high-performance essential for any Dodge 5.9L or 3.9L 4BT diesel engine restoration. The valve spring is the heartbeat of your valvetrain; its job is to provide the exact closing force required to keep the valves sealed against the high boost and cylinder pressures inherent in a Cummins-powered engine. Utilizing advanced metallurgy and precision engineering, these springs are designed to restore the snappy response and timing accuracy that factory engines lose over millions of heat cycles. By choosing a spring built with specialized alloys, you are ensuring that your engine can maintain its volumetric efficiency and peak power output under the most demanding conditions.
Premium Material Blend: Constructed from a sophisticated mix of chrome silicon, chrome silicon vanadium, and chrome silicon vanadium nickel for unmatched fatigue resistance and strength.
Advanced Thermal Processing: Each spring is meticulously stress-relieved and heat-treated, a process that stabilizes the metal to ensure an extended service life and consistent performance.
Minimized Load Loss: Engineered to resist "sagging" or tension loss over time, which is critical for[...]
The SBI Valve Spring 160-1379 is a high-performance essential for any Dodge 5.9L or 3.9L 4BT diesel engine restoration. The valve spring is the heartbeat of your valvetrain; its job is to provide the exact closing force required to keep the valves sealed against the high boost and cylinder pressures inherent in a Cummins-powered engine. Utilizing advanced metallurgy and precision engineering, these springs are designed to restore the snappy response and timing accuracy that factory engines lose over millions of heat cycles. By choosing a spring built with specialized alloys, you are ensuring that your engine can maintain its volumetric efficiency and peak power output under the most demanding conditions.
- Premium Material Blend: Constructed from a sophisticated mix of chrome silicon, chrome silicon vanadium, and chrome silicon vanadium nickel for unmatched fatigue resistance and strength.
- Advanced Thermal Processing: Each spring is meticulously stress-relieved and heat-treated, a process that stabilizes the metal to ensure an extended service life and consistent performance.
- Minimized Load Loss: Engineered to resist "sagging" or tension loss over time, which is critical for preventing valve float and ensuring a perfect seal during high-RPM operation.
- Universal Application: Designed for use as either an intake or exhaust spring, providing a standardized solution for a full head rebuild.
- Professional Flexibility: Sold individually, allowing you to replace a single fatigued spring or source a complete set for a full 8-valve or 12-valve overhaul.
Selecting the 160-1379 is an investment in proactive engine protection. Standard springs can weaken over time due to the relentless heat and mechanical stress of a diesel environment, leading to a loss of seat pressure that can cause poor fuel economy or even catastrophic engine damage. SBI’s use of high-tech alloys and strict quality control ensures that these springs meet or exceed OE specifications, providing the "spring-back" force necessary to handle increased boost levels or heavy towing. Whether you are refreshing a legendary 4BT swap or a high-mileage 5.9L workhorse, these springs provide the structural reliability and consistent pressure required for an engine that’s built to last.
Specifications:
- I.D: 0.948
- O.D: 1.320
- Length: 2.385
- Solid Height: 1.400
- Wire Diameter: 0.187
- Open Pressure: [email protected]
- Closed Pressure: [email protected]
- Coils / Turn Direction: 7.60 RH
Note:
- Qty of 12 valve springs required for 5.9L 6BT.
- Qty of 8 valve springs required for 3.9L 4BT.