Availability

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Make/Engine
Exhaust Valve Stem Diameter (in.)
- 0.342 in. (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- 0.371 in. (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Exhaust Valve Stem Diameter (mm)
- 8.69mm (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- 9.42mm (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Exhaust Overall Valve Length (in.)
- 5.075 in. (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- 5.255 in. (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Exhaust Overall Valve Length (mm)
- 128.905mm (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- 133.477mm (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Valve Tip Length (in.)
- 0.220 in. (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- 0.290 in. (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Valve Tip Length (mm)
- 5.588mm (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- 7.366mm (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Approximate Weight (g)
- 107 (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- 111 (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Valve Head Style
- 17 degree dish (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- 7 degree dish (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Valve Seat Width (in.)
- 0.080 in. (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- 0.100 in. (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.

Manley Severe Duty Pro Flo Series Stainless Steel Valves

5.0 out of 5 stars 5 Customer Reviews

Manley Severe Duty Pro Flo Series intake and exhaust valves are a great choice for your high performance or race engine. All valves are made from stainless steel (intakes are NK-844; exhausts are XH-428) with chrome stems and hardened valve tips. Severe Duty series valves are fully machined and swirl polished, and offer improved flow with undercut "Pro Flo" stems. Many size options are available, for applications from 1955 and up.

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