The Enginetech V3423 exhaust valve features a 1.181" head diameter, 0.2346" stem (6mm nominal), and 4.546" overall length with a chrome-plated stem. Fits 1996-2012 Ford/Mazda 3.0L applications.
Important Notes
- Sold individually as a single valve. Order the quantity required for your engine configuration (typically one per cylinder per valve position).
- Production date restriction: fits vehicles built through 07/00 only. Verify the production date on the VIN plate before ordering.
- Chrome-plated stem provides a hard, low-friction wear surface for extended service life.
- Fitment exclusion: Except Lincoln LS. Verify the original valve construction before ordering - this part is not a replacement for valves with the listed construction.
- Always verify head diameter, stem diameter, overall valve length, and groove count against the OE valve being replaced before installation - valve dimensions vary across engine families and a visual match alone is not sufficient.
Specifications
| Part Number | V3423 |
| Valve Type | Exhaust Valve |
| Head Diameter | 1.181" |
| Stem Diameter | 0.2346" (6mm nominal) |
| Valve Length | 4.546" OAL |
| Stem Finish | Chrome Stem |
| Number of Grooves | 3 |
| Weight | 0.25 lbs |
| OEM Cross-Refs | AC Clevite: 2114106, DNJ Rock: EV412, Dynagear-Manley: A3423, Elgin: E3423, Elgin: E-3423, Fed. Mogul: V4556 |
Vehicle Fitment
- 1996-1999 Ford 3.0L / 181 DOHC V6 24V "1,G,S" Duratec 89.00mm Bore
- 2000 Ford 3.0L / 181 DOHC V6 24V "1,G,S" Duratec 89.00mm Bore
- 2000-2005 Ford 3.0L / 181 DOHC V6 24V "1,G,S" Duratec 89.00mm Bore
- 2006-2012 Ford 3.0L / 181 DOHC V6 24V "1,G,S" Duratec 89.00mm Bore
- 2003-2008 Mazda 3.0L / 2967 DOHC V6 24V AJ Duratec 89.00mm Bore
- 2001-2011 Ford 3.0L / 181 DOHC V6 24V "1,G" Duratec 89.00mm Bore
- 2001-2011 Mazda 3.0L / 2967 DOHC V6 24V AJ Duratec 89.00mm Bore
Product Video
Watch the Enginetech exhaust valve overview: https://youtu.be/G487Dw8HtII
Watch the Enginetech exhaust valve overview: https://youtu.be/eLaQHop7rH8
Enginetech standard valves are stock-replacement engine valves produced from OE grade materials or better, engineered with the production engine rebuilder in mind. Face runout, stem finish, and stem diameter tolerances are held to some of the tightest standards in the internal engine parts industry, and every valve is inspected by on-site engineers against a documented quality plan before it leaves the plant. The line covers domestic, import, and common high-performance applications across a full range of head diameters, stem diameters, and overall lengths, with chrome-plated and nitride-hardened stem finishes available where the engine's operating conditions call for the upgrade. Always verify head diameter, stem diameter, valve length, groove count, and any oversize stem requirement against the original valve being replaced before installing, as multiple valve configurations can share the same vehicle nameplate.
WARNING: This product can expose you to chemicals including lead and nickel, which are known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.
