The SBI Performance Exhaust Valve 01664R is an ideal replacement for your Dodge 5.9L diesel engine. Featuring a bimetallic design that uses specialized manufacturing processes to improve durability and performance compared to stock valves. Each valve is constructed with a premium-grade austenitic stainless steel valve head for exhaust (EV16) applications, providing excellent strength and heat resistance. A mid-stem weld joins the valve head to a high-grade, high-chromium steel stem (HNV3), combining superior heat tolerance at the valve head with increased stem strength and wear resistance. Every valve is fully machined, Nitrided across the entire surface, and precision polished to enhance fatigue resistance, reduce friction, and extend service life. The valve tip is hardened to a minimum of 50 HRC, ensuring long-lasting durability under high valve train loads.
Specifications:
Features:
- Performance Exhaust Valve
- Nitrided Finish
- High-Grade Chromium Steel Stem
- Premium Grade Austenitic Steel Material
- Mid Stem Weld For Superior Durability
- Sold Individually
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
Manufacturer Warranty*:
1 Year Limited
1 Year Limited
Shipping Restrictions Apply 
This product can not be shipped to these states/provinces: CA
This product can not be shipped to these states/provinces: CANote:
Qty of 6 exhaust valves required for 5.9L 6BT.
Qty of 4 exhaust valves required for 3.9L 4BT.
Qty of 6 exhaust valves required for 5.9L 6BT.
Qty of 4 exhaust valves required for 3.9L 4BT.
