Supertech apply more than 30 years of experience in the development of each and every Supertech racing valve we sell. Combine that experience with state of the art equipment such as ultrasonic tests, x-rays, laser measurement equipment, and applications like computerized Finite Element Analysis (FEA) and it is no wonder why Supertech has some of the best performance products on the market.

Intake Valves 

• Head Diameter: 30.00mm(std) Dish
• Material: Stainless Steel 21-4N
• Groove Type: Single Groove
• Length: 118.5mm
• Stem Diameter: 5.48mm

Exhaust Valves*

• Head Diameter: 26.00mm(std) Dish
• Material: Stainless Steel 23-8N
• Groove Type: Single Groove
• Length: 115.95mm
• Stem Diameter: 5.45mm

ENGINES

• D15B, D16Y6, D16Y7, D16Y8, D16Z6, D17A, *R18A SOHC i-VTEC (Exhaust Valves)