{"product_id":"manley-thru-08-chevy-hemi-5-7l-w-triple-groove-1-575in-race-master-exhaust-valves-set-of-8","title":"Manley thru 08 Chevy Hemi 5.7L w\/ Triple Groove 1.575in Race Master Exhaust Valves (Set of 8) - 11667-8","description":"\u003cp\u003eManley?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\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\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\u003eChrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity and wear resistance.\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\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\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\u003c\/ul\u003e\n\u003ch3\u003eSpecs\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eManley Valve\u003c\/li\u003e\n\u003cli\u003eExhaust, Valve-HEMI 57 R\/M 1.575\u003c\/li\u003e\n\u003cli\u003eExhaust, Valve-HEMI 5.7 R\/M 1.575\u003c\/li\u003e\n\u003cli\u003eProp 65 - Short Label: Prop 65 Warning Label.JPG\u003c\/li\u003e\n\u003cli\u003eEngine Type: ICE\u003c\/li\u003e\n\u003cli\u003eMake: Chrysler\u003c\/li\u003e\n\u003cli\u003eEngine: 5.7L Hemi\u003c\/li\u003e\n\u003cli\u003eProduct Market: Domestic\u003c\/li\u003e\n\u003cli\u003eHead Diameter: 1.575\u003c\/li\u003e\n\u003cli\u003eValve Head Diameter: 1.575\u003c\/li\u003e\n\u003cli\u003eStem Diameter: 0.3125\u003c\/li\u003e\n\u003cli\u003eValve Stem Diameter: 0.3125\u003c\/li\u003e\n\u003cli\u003eO\/A Length: 4.845\u003c\/li\u003e\n\u003cli\u003eValve Length: 4.845\u003c\/li\u003e\n\u003cli\u003eValve Tip Length: 0.120\u003c\/li\u003e\n\u003cli\u003eTip Length: 0.120\u003c\/li\u003e\n\u003cli\u003eMargin Width: 0.065\u003c\/li\u003e\n\u003cli\u003eSeat Width: 0.100\u003c\/li\u003e\n\u003cli\u003eTop of Head: 20 Degree Dish\u003c\/li\u003e\n\u003cli\u003eValve Head Shape: 20 Degree Dish\u003c\/li\u003e\n\u003cli\u003eUnderhead Angle: 25.00\u003c\/li\u003e\n\u003cli\u003eUnderhead Radius: 1\/2\u003c\/li\u003e\n\u003cli\u003eValve Series: Race Series\u003c\/li\u003e\n\u003cli\u003eValve Sub-Series: Race Master\u003c\/li\u003e\n\u003cli\u003eValve Material: Stainless Steel\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Manley Performance","offers":[{"title":"Default Title","offer_id":52480988414315,"sku":"MAN11667-8","price":198.46,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/9690\/4998\/files\/public_679a3306-93f0-4ad7-93a7-43138ff0a4d6.jpg?v=1778202992","url":"https:\/\/www.raptorracing.com\/products\/manley-thru-08-chevy-hemi-5-7l-w-triple-groove-1-575in-race-master-exhaust-valves-set-of-8","provider":"Raptor Racing","version":"1.0","type":"link"}