Description
Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity and wear resistance.Swirl Polished and Fully Machined: The valves feature swirl polished under head areas and fully machined combustion faces to optimize airflow and combustion efficiency.Variety of Shapes: Choose between Race Master (Straight Stem) and Race Flo shapes to suit your racing engine’s specific requirements.Recommended for Alcohol Engines: These valves are the recommended choice for exhaust valves in alcohol engines, ensuring reliable performance even in demanding conditions.
This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2007-2008 | Ford | F-150 | FX2 |
| 2005-2008 | Ford | F-150 | FX4 |
| 2006-2008 | Ford | F-150 | Harley-Davidson Edition |
| 2005-2008 | Ford | F-150 | King Ranch |
| 2005-2008 | Ford | F-150 | Lariat |
| 2008 | Ford | F-150 | Limited |
| 2005-2008 | Ford | F-150 | XL |
| 2005-2008 | Ford | F-150 | XLT |
| 2008 | Ford | F-250 Super Duty | FX4 |
| 2006-2008 | Ford | F-250 Super Duty | King Ranch |
| 2006-2008 | Ford | F-250 Super Duty | Lariat |
| 2006-2008 | Ford | F-250 Super Duty | XL |
| 2006-2008 | Ford | F-250 Super Duty | XLT |
| 2008 | Ford | F-350 Super Duty | FX4 |
| 2006-2008 | Ford | F-350 Super Duty | King Ranch |
| 2006-2008 | Ford | F-350 Super Duty | Lariat |
| 2006-2008 | Ford | F-350 Super Duty | XL |
| 2006-2008 | Ford | F-350 Super Duty | XLT |
| 2005-2008 | Ford | Mustang | GT |
| 2007-2008 | Ford | Mustang | Shelby GT |
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