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The SBI 01664R Performance Exhaust Valve is engineered as a high-performance upgrade for 1989–1998 Dodge 5.9L Cummins diesel engines. Unlike standard factory replacements, this valve utilizes a bimetallic construction designed to withstand the extreme thermal and mechanical stresses inherent in heavy-duty diesel cycles. By employing specialized manufacturing techniques, SBI ensures that each component addresses the specific demands of the exhaust environment, where heat management and structural integrity are paramount for engine longevity.
- Advanced Bimetallic Construction: Features a premium-grade austenitic stainless steel (EV16) head joined to a high-chromium steel (HNV3) stem via a precision mid-stem weld, balancing extreme heat resistance with high-tensile stem strength.
- Full-Surface Nitrided Finish: The entire valve undergoes a nitriding process to harden the surface, which significantly reduces friction, enhances fatigue resistance, and prevents premature wear.
- Hardened Valve Tip: The tip is hardened to a minimum of 50 HRC, providing a robust contact point that survives high valve train loads without mushrooming or deformation.
- Precision Machined and Polished: Every valve is fully machined and precision polished to ensure smooth operation within the guide, minimizing drag and extending the service life of the valve train.
- Reliability Guaranteed: Sold individually for custom configuration needs and backed by a 1-year limited manufacturer warranty.
This meticulous combination of materials and finishes makes the SBI 01664R more than just a replacement part; it is a critical reliability upgrade for your Cummins engine. The use of austenitic steel at the head ensures the valve remains stable under the searing temperatures of the exhaust stroke, while the high-chromium stem provides the rigidity needed for consistent timing and seal. Whether you are performing a standard rebuild or seeking improved durability for a tuned engine, this nitrided exhaust valve delivers the professional-grade protection required to maintain peak performance over the long haul.
Specifications:
- Wafer: N
- Length: 5.076
- Stem Type: 1G
- Seat Angle: 45
- Tip Length: 0.2362
- Head Diameter: 1.654
- Stem Diameter: 0.3138
- Chrome or Nitrided: NR
Note: Qty of 6 exhaust valves required for 5.9L 6BT.
The SBI 01664R Performance Exhaust Valve is engineered as a high-performance upgrade for 1989–1998 Dodge 5.9L Cummins diesel engines. Unlike standard factory replacements, this valve utilizes a bimetallic construction designed to withstand the extreme thermal and mechanical stresses inherent in heavy-duty diesel cycles. By employing specialized manufacturing techniques, SBI ensures that each component addresses the specific demands of the exhaust environment, where heat management and structural integrity are paramount for engine longevity.
Advanced Bimetallic Construction: Features a premium-grade austenitic stainless steel (EV16) head joined to a high-chromium steel (HNV3) stem via a precision mid-stem weld, balancing extreme heat resistance with high-tensile stem strength.
Full-Surface Nitrided Finish: The entire valve undergoes a nitriding process to harden the surface, which significantly reduces friction, enhances fatigue resistance, and prevents premature wear.
Hardened Valve Tip: The tip is hardened to a minimum of 50 HRC, providing a robust contact point that survives high valve train loads without mushrooming or deformation.
Precision Machined and Po[...]
The SBI 01664R Performance Exhaust Valve is engineered as a high-performance upgrade for 1989–1998 Dodge 5.9L Cummins diesel engines. Unlike standard factory replacements, this valve utilizes a bimetallic construction designed to withstand the extreme thermal and mechanical stresses inherent in heavy-duty diesel cycles. By employing specialized manufacturing techniques, SBI ensures that each component addresses the specific demands of the exhaust environment, where heat management and structural integrity are paramount for engine longevity.
- Advanced Bimetallic Construction: Features a premium-grade austenitic stainless steel (EV16) head joined to a high-chromium steel (HNV3) stem via a precision mid-stem weld, balancing extreme heat resistance with high-tensile stem strength.
- Full-Surface Nitrided Finish: The entire valve undergoes a nitriding process to harden the surface, which significantly reduces friction, enhances fatigue resistance, and prevents premature wear.
- Hardened Valve Tip: The tip is hardened to a minimum of 50 HRC, providing a robust contact point that survives high valve train loads without mushrooming or deformation.
- Precision Machined and Polished: Every valve is fully machined and precision polished to ensure smooth operation within the guide, minimizing drag and extending the service life of the valve train.
- Reliability Guaranteed: Sold individually for custom configuration needs and backed by a 1-year limited manufacturer warranty.
This meticulous combination of materials and finishes makes the SBI 01664R more than just a replacement part; it is a critical reliability upgrade for your Cummins engine. The use of austenitic steel at the head ensures the valve remains stable under the searing temperatures of the exhaust stroke, while the high-chromium stem provides the rigidity needed for consistent timing and seal. Whether you are performing a standard rebuild or seeking improved durability for a tuned engine, this nitrided exhaust valve delivers the professional-grade protection required to maintain peak performance over the long haul.
Specifications:
- Wafer: N
- Length: 5.076
- Stem Type: 1G
- Seat Angle: 45
- Tip Length: 0.2362
- Head Diameter: 1.654
- Stem Diameter: 0.3138
- Chrome or Nitrided: NR
Note: Qty of 6 exhaust valves required for 5.9L 6BT.