Black Diamond™ engine valve

Black Diamond™ valves CNC-machined from a single stainless steel EV8 forging.
Single-piece, lightweight and robust forging, with profiles offering excellent flow characteristics.
The valve is treated using a special German process to a depth of 0.002, with a surface coating of 0.0002, which improves wear resistance, reduces friction and provides superior protection against corrosion and wear compared to electrolytic chrome and nickel plating.
Each valve is designed using Finite Element Analysis (F.E.A) software and profiles are tested on a computerised flow bench.
Stems coated with black nitroneg
Manufactured in the USA
Requires use of Kibblewhite spring kit.



Specifications


Brand
KIBBLEWHITE


Supplier reference
30-30220


Valve seat angle
20°


Valve seat angle
20°


Application
Intake


Head diameter
36,00 mm


Head diameter
1,417"


Cylinder head diameter
1,417"


Stem diameter
0.2158"


Stem diameter
5,50 mm


Stem diameter
0,2158"


Length
3,315"


Length
3,315"


Material
Stainless Steel


Size
Standard


Measurements/Size
Standard


Model
Black Diamond™


Product name
Valve


Units
Unit