{"product_id":"manley-chevy-ls-3-l-99-l-92-head-small-block-race-master-exhaust-valves-set-of-8","title":"Manley Chevy LS-3\/L-99 (L-92 Head) Small Block Race Master Exhaust Valves (Set of 8)","description":"Manley 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: 1.590 in. - Stem Diameter: 0.3136 in. - O\/A : 4.923 in.\nManley Valve - Exhaust, Valve-L-92 R\/M 1.590.\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 Race Series Exhaust Valves, specifically designed for LS-3 and L-99 small block engines. Crafted for high-stress racing applications, these valves operate optimally at speeds up to 8,000 RPM, making them ideal for bracket, drag, and oval track racing. Constructed from high-quality stainless steel, they provide excellent durability and resistance to wear in demanding conditions. The valves feature swirl polished under-head areas and fully machined combustion faces, which enhance airflow and improve combustion efficiency for increased horsepower and torque. Chrome stems and hard tips are incorporated to further extend service life and maintain performance over time. Recommended for alcohol engines, these exhaust valves are engineered to withstand the intense environments encountered during high-performance racing, ensuring reliable operation under extreme conditions. The set includes eight valves, making it a comprehensive upgrade for your engine's valvetrain, and is suitable for a variety of vehicles such as Cadillac Escalade, Hummer H2, and GMC Yukon. Whether you're building a race engine or upgrading an existing setup, these valves provide the reliability and performance needed to achieve competitive results.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003eEngineered for engines operating up to 8,000 RPM for racing applications\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eConstructed from durable stainless steel for long-lasting performance\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eSwirl polished under-head areas to optimize airflow and combustion\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eFully machined combustion faces enhance efficiency\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eChrome stems and hard tips for increased wear resistance\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eRecommended for alcohol engines to ensure reliable performance\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eAvailable in various shapes, including Race Master and Race Flo designs\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eDesigned to fit LS-3 and L-99 small block engines, including Cadillac Escalade, Hummer H2, and GMC Yukon\u003c\/li\u003e\u003c\/ul\u003e\u003cbr\u003e\nFitment:\u003cbr\u003e\nCadillac Escalade Base 2007\u003cbr\u003e\nCadillac Escalade Base 2008\u003cbr\u003e\nCadillac Escalade ESV Base 2007\u003cbr\u003e\nCadillac Escalade ESV Base 2008\u003cbr\u003e\nCadillac Escalade ESV Platinum 2008\u003cbr\u003e\nCadillac Escalade EXT Base 2007\u003cbr\u003e\nCadillac Escalade EXT Base 2008\u003cbr\u003e\nGMC Yukon Denali 2007\u003cbr\u003e\nGMC Yukon Denali 2008\u003cbr\u003e\nGMC Yukon XL 1500 Denali 2007\u003cbr\u003e\nGMC Yukon XL 1500 Denali 2008\u003cbr\u003e\nHummer H2 Base 2008","brand":"Manley Performance","offers":[{"title":"Default Title","offer_id":53855394922812,"sku":"man11621-8","price":261.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1865\/9007\/files\/8abcc06748efc38771788b16aecbc122_516b73d8-3643-403a-a459-e7caa03e7a1a.jpg?v=1784852990","url":"https:\/\/necycleshop.com\/products\/manley-chevy-ls-3-l-99-l-92-head-small-block-race-master-exhaust-valves-set-of-8","provider":"NE Cycle Shop","version":"1.0","type":"link"}