Supertech Black Nitride Intake Valve – +1mm Oversize – Single | 1989-1993 Mazda Miata (MAIVN-1102) Supertech

1989-1993 Mazda Miata Black Nitride Intake Valve by Supertech

Supertech intake valves are made exclusively from an enhanced versions of EV8 (21-4N) steel. This is the highest grade of steel available and provides the strength to withstand just about any application.

Features

• Head Diam: 32.00mm (+1.0)
• Material: Stainless Steel 21-4N
• Groove Type: Single Groove
• Length: 105.35mm
• Stem Diam: 5.96mm
• Back-cut angle
• Undercut stem
• One piece forged valve (non-magnetic)
• Magnetic friction welded wafer, Hardened to 52 HRC min
• Black Nitride for superior hardness keeping core ductility
• “Superfinish” valve stem with a surface roughness of about 1/3 of a regular valve

Benefits

• Less Friction
• Better Flow Rates
• Better Sealing
• Improves durability and reduces carbon build up

Applications

• 1989-1993 Mazda Miata

What’s In The Box?

• 1 – Intake Valve

Warranty

• Due to the nature of the application, these parts are sold without any express warranty or any implied warranty of merchantability, or fitness for a particular purpose.