SUPERTECH Black Nitrided Standard Compression Intake Valves (Honda K20C Type R)

Supertech manufactures it's own racing valves using only the highest quality materials available. They have spent countless hours studying these different materials as well as your applications to create just the right valve.
Because of thermal fatigue the proper choice of material will greatly determine the valve performance and reliability. Supertech relentlessly test new materials to provide valves with unsurpassed fatigue resistance.

These valves are black nitride coated, which is a hardening treatment that has been steadily growing in popularity over the last several years.
These black Nitride coated valves feature harder surfaces and smoother finishes, providing less friction and subsequently longer life.
 
Valve Specs:
Head Diam: 35mm
Material: Stainless Steel 21-4N
Groove Type: Single Groove
Length: 117.25mm
Stem Diam: 5.48mm
Type: dish
Valve Type: Intake
 
This is a set of 8 intake valves only.