Availability

- In Stock Items, Including at a Supplier. Ships In a Few Days. (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.
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Valve Position
- Intake (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.
Intake Valve Head Diameter (in.)
- 2.150 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.
- 2.300 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.
Intake Valve Head Diameter (mm)
- 54.610mm (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.
- 58.420mm (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.
Intake Valve Stem Diameter (in.)
- 0.372 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.
Intake Valve Stem Diameter (mm)
- 9.50mm (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.
Intake Overall Valve Length (in.)
- 5.600 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.
- 5.640 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.
Intake Overall Valve Length (mm)
- 142.200mm (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.
- 143.300mm (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.
Undercut Stem
- Yes (1)
Swirl-Polished
- Yes (1)
Valve Material
- NK-844 stainless steel (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 Valves

Showing All Customizable Items, Including Not in Stock Items

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Manley Severe Duty Series Gen II Custom Valves

These Severe Duty Gen II custom valves with unmatched strength and superiority are the only valves of their kind. Exhaust material XH-428 and intake material NK-844 are paired together for ultimate dominance over all others. With four times the tensile strength of competitors' intake valves and supremely better fatigue life, Manley Severe Duty Gen II custom valves truly show their commitment to seeing that you're there at the finish. You decide the head diameter and seat and margin widths, as well as valve length, groove type, and location for the perfect custom setup!

Not Yet Reviewed

$933.59

Manley Race Series Gen II Custom Valves

Do you have a boosted, high-heat, high-horsepower engine? Manley offers custom race valves for your high performance engine. These Race Series Gen II custom valves are manufactured from XH-426 (exhaust) and NK-842 (intake) materials with hard tips and hardened grooves. They are tailored to length, groove position, head diameter, margin, and other specifications that you request when ordering. So, whether you're building an engine or are a serious racer, Manley is committed to seeing that you're there at the finish.

Not Yet Reviewed

$750.83

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