{"product_id":"manley-performance-12331-8-race-series-exhaust-valves-for-6-4l-hemi-engines","title":"Manley Performance 12331-8 Race Series Exhaust Valves for 6.4L HEMI Engines","description":"Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM\nManley Valve - Exhaust, Valve-HEMI 6.4 R\/M 1.654.\n\u003cul\u003e\n  \u003cli\u003eRecommended for Alcohol Engines: These valves are the recommended choice for exhaust valves in alcohol engines, ensuring reliable performance even in demanding conditions.\u003c\/li\u003e\n  \u003cli\u003eSwirl Polished and Fully Machined: The valves feature swirl polished under head areas and fully machined combustion faces to optimize airflow and combustion efficiency.\u003c\/li\u003e\n  \u003cli\u003eStainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.\u003c\/li\u003e\n  \u003cli\u003eVariety of Shapes: Choose between Race Master (Straight Stem) and Race Flo shapes to suit your racing engine's specific requirements.\u003c\/li\u003e\n  \u003cli\u003eChrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity and wear resistance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eDesigned specifically for high-performance applications, the Manley Performance 12331-8 Race Series Exhaust Valves are engineered to meet the demanding needs of bracket, drag, and oval track racing. Built for engines operating under 8,000 RPM, these valves deliver reliable durability and consistent performance in intense conditions. The valves are recommended for alcohol engines, ensuring they maintain optimal airflow and combustion efficiency even during prolonged high-stress operation. Crafted from high-quality stainless steel, the exhaust (XH-426) and intake (NK-842) valves boast exceptional strength and resistance to wear, making them an ideal choice for racing enthusiasts seeking longevity and precision.\u003c\/p\u003e\u003cp\u003eEach valve features swirl-polished under-head areas and fully machined combustion faces, which help improve airflow and combustion efficiency for better power output. The design includes chrome-plated stems and hard tips to enhance wear resistance, extending the lifespan of the valves under rigorous racing conditions. Available in a variety of shapes, including the Race Master (straight stem) and Race Flo configurations, these valves can be tailored to your specific engine setup. Whether you are upgrading an existing engine or building a new high-performance powerplant, these valves provide the perfect balance of durability and performance to maximize your engine's potential.\u003c\/p\u003e\u003cp\u003eThe Manley Performance Race Series valves are a proven choice for racing applications, combining meticulous engineering with premium materials to meet the strict demands of competitive motorsports. Their compatibility with 6.4L HEMI engines makes them an excellent upgrade for enthusiasts looking to boost engine efficiency and durability. Easy to install and backed by Manley's reputation for quality, these valves are an essential component for racers aiming for consistent, high-level performance on the track.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003eRecommended for alcohol engines to ensure reliable performance in demanding conditions\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eSwirl polished under-head areas to optimize airflow and combustion efficiency\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eFully machined combustion faces for precise fit and performance\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eConstructed from high-quality stainless steel for durability and wear resistance\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eAvailable in Race Master (straight stem) and Race Flo shapes to suit different engine configurations\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eChrome stems and hard tips for extended longevity and resistance to wear\u003c\/li\u003e\u003c\/ul\u003e\u003cstyle\u003etable.productattributes, .productattributes td { border-bottom: 1px solid #ddd; border-collapse: collapse; padding: 2px; text-align: left; }\u003c\/style\u003e\n\u003ctable class=\"productattributes\"\u003e\n\u003cthead\u003e\u003ctr\u003e\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbdoy\u003e\n\u003ctr\u003e\u003ctd\u003eAir Freight Prohibited: false\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eNot Carb Approved: false\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eLtl Freight Required: false\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eProp 65: Y\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003ePart Type: automotive\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eEpa: N\/A\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eCarb Acknowledgement Required: false\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eRegular Stock: t\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eUnits Per Sku: 1\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbdoy\u003e\n\u003c\/table\u003e\u003cbr\u003e","brand":"Manley Performance","offers":[{"title":"Default Title","offer_id":53602991440145,"sku":"12331-8","price":214.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/3830\/0689\/files\/8abcc06748efc38771788b16aecbc122_b37c2a63-e1cf-49be-9ad9-feef8c37f980.jpg?v=1779957178","url":"https:\/\/shoprenegade.com\/products\/manley-performance-12331-8-race-series-exhaust-valves-for-6-4l-hemi-engines","provider":"Renegade Speed by Renegade Racing \u0026 Performance","version":"1.0","type":"link"}