Manley Performance Valve Gen II Valve Blanks 40mm

Race Series

- Hard Tips and Hardened Grooves
- No Need for Inserted Tips or Wear Caps

The procedure for ordering a custom valve is as simple as 1-2-3 !
1. Select the blank appropriate for your finished piece based first on stem diameter.
2. Give us your final head diameter along with the seat and margin widths.
3. Specify the length of the valve you want, along with groove type and location.

* Part numbers with asterisks can be reduced 1.500" or 38mm. All others .800" or 20.32mm

Specs:

Type: Exhaust

Maximum Head Diameter: 40.0mm

Stem Diameter: 1.575 8.0mm

Maximum Length: .3130 127.0mm

Underhead Angle/Radius: 5.000 15° x 1/2"

Margin: .080

Seat Width: .100

Top of Head: 9° Dish

Material: XH-426

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