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Thumbnail Filmstrip of 5.9 Cummins Performance Intake Valve SBI 01665R Images
The SBI 01665R Performance Intake Valve represents a critical engineering upgrade for the 1989-1998 Dodge 5.9L Cummins diesel engine. While stock valves often serve as a weak point under increased thermal and mechanical stress, this performance component utilizes a sophisticated bimetallic construction to bridge the gap between heavy-duty reliability and high-output efficiency. By employing specialized manufacturing processes, SBI has developed a valve that specifically addresses the harsh environments of a diesel combustion chamber, ensuring your valvetrain can withstand the rigors of both daily towing and performance applications.
- Bimetallic Construction: Features a mid-stem weld that fuses a premium-grade austenitic stainless steel head (EV16) to a high-chromium steel stem (HNV3), optimizing the material properties for each specific zone of the valve.
- Full Nitrided Finish: The entire surface is treated with a liquid nitriding process and precision polished to significantly reduce friction, enhance fatigue resistance, and prevent premature wear.
- High-Strength Stem: The HNV3 high-grade chromium steel stem provides superior structural integrity and wear resistance where the valve interfaces with the guide.
- Induction Hardened Tip: The valve tip is hardened to a minimum of 50 HRC, protecting the component against the constant impact and high loads of the rocker arms.
- Precision Machining: Every valve is fully machined to exacting tolerances, ensuring a perfect seal and consistent airflow characteristics.
- Warranty Protection: Backed by a 1-year limited manufacturer warranty for peace of mind regarding material and craftsmanship.
By choosing the SBI 01665R, you are investing in a component designed for longevity and superior heat tolerance. The use of austenitic stainless steel—traditionally reserved for high-heat exhaust applications—provides an extra margin of safety against the thermal fatigue that often plagues high-mileage Cummins engines. Sold individually to allow for precise engine rebuilding or targeted replacements, these valves are the professional choice for enthusiasts looking to fortify their 12-valve Cummins against the demands of modern performance tuning.
Specifications:
- Wafer: N
- Length: 5.084
- Stem Type: 1G
- Seat Angle: 30
- Tip Length: 0.2360
- Head Diameter: 1.772
- Stem Diameter: 0.3138
- Chrome or Nitrided: NR
Note: Qty of 6 intake valves required for 5.9L 6BT.
The SBI 01665R Performance Intake Valve represents a critical engineering upgrade for the 1989-1998 Dodge 5.9L Cummins diesel engine. While stock valves often serve as a weak point under increased thermal and mechanical stress, this performance component utilizes a sophisticated bimetallic construction to bridge the gap between heavy-duty reliability and high-output efficiency. By employing specialized manufacturing processes, SBI has developed a valve that specifically addresses the harsh environments of a diesel combustion chamber, ensuring your valvetrain can withstand the rigors of both daily towing and performance applications.
Bimetallic Construction: Features a mid-stem weld that fuses a premium-grade austenitic stainless steel head (EV16) to a high-chromium steel stem (HNV3), optimizing the material properties for each specific zone of the valve.
Full Nitrided Finish: The entire surface is treated with a liquid nitriding process and precision polished to significantly reduce friction, enhance fatigue resistance, and prevent premature wear.
High-Strength Stem: The HNV3 high-grade chromium steel stem provides superior structural integrity and wear resistance [...]
The SBI 01665R Performance Intake Valve represents a critical engineering upgrade for the 1989-1998 Dodge 5.9L Cummins diesel engine. While stock valves often serve as a weak point under increased thermal and mechanical stress, this performance component utilizes a sophisticated bimetallic construction to bridge the gap between heavy-duty reliability and high-output efficiency. By employing specialized manufacturing processes, SBI has developed a valve that specifically addresses the harsh environments of a diesel combustion chamber, ensuring your valvetrain can withstand the rigors of both daily towing and performance applications.
- Bimetallic Construction: Features a mid-stem weld that fuses a premium-grade austenitic stainless steel head (EV16) to a high-chromium steel stem (HNV3), optimizing the material properties for each specific zone of the valve.
- Full Nitrided Finish: The entire surface is treated with a liquid nitriding process and precision polished to significantly reduce friction, enhance fatigue resistance, and prevent premature wear.
- High-Strength Stem: The HNV3 high-grade chromium steel stem provides superior structural integrity and wear resistance where the valve interfaces with the guide.
- Induction Hardened Tip: The valve tip is hardened to a minimum of 50 HRC, protecting the component against the constant impact and high loads of the rocker arms.
- Precision Machining: Every valve is fully machined to exacting tolerances, ensuring a perfect seal and consistent airflow characteristics.
- Warranty Protection: Backed by a 1-year limited manufacturer warranty for peace of mind regarding material and craftsmanship.
By choosing the SBI 01665R, you are investing in a component designed for longevity and superior heat tolerance. The use of austenitic stainless steel—traditionally reserved for high-heat exhaust applications—provides an extra margin of safety against the thermal fatigue that often plagues high-mileage Cummins engines. Sold individually to allow for precise engine rebuilding or targeted replacements, these valves are the professional choice for enthusiasts looking to fortify their 12-valve Cummins against the demands of modern performance tuning.
Specifications:
- Wafer: N
- Length: 5.084
- Stem Type: 1G
- Seat Angle: 30
- Tip Length: 0.2360
- Head Diameter: 1.772
- Stem Diameter: 0.3138
- Chrome or Nitrided: NR
Note: Qty of 6 intake valves required for 5.9L 6BT.