{"product_id":"manley-performance-ls-1-ls-2-ls-6-head-1-550-inch-race-flo-exhaust-valves-for-chevrolet-and-pontiac-engines","title":"Manley Performance LS-1 \/ LS-2 (LS-6 Head) 1.550 Inch Race Flo Exhaust Valves for Chevrolet and Pontiac 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\nHead Diameter: 1.550 in. - Stem Diameter: .3136 in. - O\/A : 4.923\nManley Valve - Exhaust, Valve-LS1 R\/M 1.550.\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\u003eUpgrade your engine's performance with the Manley Performance LS-1 \/ LS-2 (LS-6 Head) 1.550 Inch Race Flo Exhaust Valves, designed specifically for high-performance applications in Chevrolet and Pontiac vehicles. These valves are engineered to withstand demanding racing conditions and operate efficiently at engine speeds up to 8,000 RPM, making them ideal for bracket, drag, and oval track racing. Crafted from high-quality stainless steel, they offer exceptional durability and resistance to wear during intense engine use. The valves feature swirl-polished under-head areas and fully machined combustion faces, which optimize airflow and improve combustion efficiency for increased horsepower and better throttle response. The inclusion of chrome stems and hard tips further enhances longevity, reducing the need for frequent maintenance and ensuring consistent performance over time. These exhaust valves are recommended for alcohol engines, providing reliable operation even under high-stress conditions. The design options include Race Master (straight stem) and Race Flo shapes, allowing customization based on your specific engine configuration and racing needs. Their compatibility with various Chevrolet and Pontiac LS engines makes them a versatile upgrade for serious racers seeking to maximize engine output and reliability. Whether you're building a dedicated race engine or upgrading your stock setup for better performance, these valves deliver the quality and precision expected from Manley Performance, ensuring your engine maintains optimal airflow and combustion efficiency across multiple racing scenarios.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003eDesigned for engines operating up to 8,000 RPM, suitable for racing applications\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\u003eSwirl-polished under-head areas and fully machined combustion faces optimize airflow\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eChrome stems and hard tips enhance longevity and performance reliability\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eRecommended for alcohol engines, ensuring consistent operation under demanding conditions\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eAvailable in Race Master (straight stem) and Race Flo shapes for customizable fit\u003c\/li\u003e\u003c\/ul\u003e\u003cbr\u003e\nFitment:\u003cbr\u003e\n1997 Chevrolet Corvette Base\u003cbr\u003e\n1998 Chevrolet Camaro Z28\u003cbr\u003e\n1998 Chevrolet Corvette Base\u003cbr\u003e\n1998 Pontiac Firebird Formula\u003cbr\u003e\n1999 Chevrolet Camaro Z28\u003cbr\u003e\n1999 Chevrolet Corvette Base\u003cbr\u003e\n1999 Pontiac Firebird Formula\u003cbr\u003e\n2000 Chevrolet Camaro Z28\u003cbr\u003e\n2000 Chevrolet Corvette Base\u003cbr\u003e\n2000 Pontiac Firebird Formula\u003cbr\u003e\n2001 Chevrolet Camaro Z28\u003cbr\u003e\n2001 Chevrolet Corvette Base\u003cbr\u003e\n2001 Chevrolet Corvette Z06\u003cbr\u003e\n2001 Pontiac Firebird Formula\u003cbr\u003e\n2002 Chevrolet Camaro Z28\u003cbr\u003e\n2002 Chevrolet Corvette Base\u003cbr\u003e\n2002 Chevrolet Corvette Z06\u003cbr\u003e\n2002 Pontiac Firebird Formula\u003cbr\u003e\n2003 Chevrolet Corvette Base\u003cbr\u003e\n2003 Chevrolet Corvette Z06\u003cbr\u003e\n2004 Cadillac CTS V\u003cbr\u003e\n2004 Chevrolet Corvette Base\u003cbr\u003e\n2004 Chevrolet Corvette Z06\u003cbr\u003e\n2004 Pontiac GTO Base\u003cbr\u003e\n2005 Cadillac CTS V\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: false\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":53602986492177,"sku":"11361-8","price":201.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/3830\/0689\/files\/8abcc06748efc38771788b16aecbc122_c39c58ce-9aae-4c14-aa3f-34f5a097170e.jpg?v=1779956803","url":"https:\/\/shoprenegade.com\/products\/manley-performance-ls-1-ls-2-ls-6-head-1-550-inch-race-flo-exhaust-valves-for-chevrolet-and-pontiac-engines","provider":"Renegade Speed by Renegade Racing \u0026 Performance","version":"1.0","type":"link"}