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Manley's Performance Series valves are engineered to meet the demands of enthusiasts seeking top-tier performance.
- Swirl Polished and Fully Machined: The under head areas are expertly swirl polished, and the combustion faces are fully machined, optimizing airflow and combustion efficiency for maximum power.
- Premium Stainless Steel: The Performance Series valves are available as XH-422 for exhaust and NK-840 for intake, constructed from high-quality stainless steel for optimal performance.
- Chrome Stems and Hard Tips: These valves boast chrome stems and hard tips, ensuring exceptional durability, even under extreme conditions.
- Variety of s: Tailor your valve selection to your engine's needs with options for stock or .100 longer s.
| Air Freight Prohibited: false |
| Not Carb Approved: false |
| Carb Acknowledgement Required: false |
| Ltl Freight Required: false |
| Prop 65: Y |
| Part Type: automotive |
| Epa: N/A |
| Regular Stock: false |
| Units Per Sku: 1 |
No fitment data available for this product.
This product is covered by the manufacturer's warranty against product defects and missing components in the package. To file a claim, use the brand-specific links on our warranty page.
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