Mazda MZR / Ford Duratec Black Nitride Intake Valves 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. Supertech exhaust valves are made from EV16 (21-8N) or EV8-Nb/w for greater strength at higher temperatures.
Features
- Head Diam: 37.50mm (+2.5) Dish
- Material: Stainless Steel 21-4N
- Groove Type: Single Groove
- Length: 103.40mm
- Stem Diam: 5.48mm
- Magnetic friction welded wafer, Hardened to 52 HRC min
- One piece forged valve (non-magnetic)
- Black Nitride for superior hardness keeping core ductility
- Back-cut angle
- “Superfinish” valve stem with a surface roughness of about 1/3 of a regular valve
- Undercut stem
Benefits
- Improves durability and reduces carbon build up
- Less Friction
- Better Flow Rates
- Better Sealing
Applications
- 2005-2015 Ford Escape
- 2003-2015 Ford Focus
- 2006-2015 Ford Fusion
- 2014-2015 Ford Transit Connect
- 2004-2013 Mazda Mazda3
- 2007-2010 Mazda Mazda5
- 2003-2007 Mazda Mazda6
- 2007-2012 Mazda CX-7
- 2005-2008 Mazda Tribute
- 2005-2008 Mercury Mariner
- 2006-2011 Mercury Milan
What’s In The Box?
- 8 – Intake Valves
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.