{"product_id":"manley-springs-single-hemi","title":"Manley Springs Single Hemi - 221431-16","description":"\u003cp\u003eFrom drag strips to short track and endurance circuits, the Manley NexTek® series is engineered for serious racers. NexTek® springs resist pressure loss and valve-train degradation even in the most demanding race conditions. That means more consistent spring force deep into a run, reduced valve bounce, and improved overall stability for high-RPM performance. Built to outperform and outlast in real-world competition.\u003c\/p\u003e\n\u003ch3\u003eSpecs\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eManley Valve Spring, SPRING-1.311 SINGLE HEMI\u003c\/li\u003e\n\u003cli\u003eProduct Market: Domestic\u003c\/li\u003e\n\u003cli\u003eAverage Gram Weight: 72\u003c\/li\u003e\n\u003cli\u003eProduct Type: Engine Valve Spring\u003c\/li\u003e\n\u003cli\u003eValve Spring Outer Diameter - Top: 1.076\u003c\/li\u003e\n\u003cli\u003eValve Spring Inner Diameter - Top: 0.650\u003c\/li\u003e\n\u003cli\u003eValve Spring Outer Diameter - Bottom: 1.311\u003c\/li\u003e\n\u003cli\u003eValve Spring Inner Diameter - Bottom: 0.885\u003c\/li\u003e\n\u003cli\u003eValve Spring Quantity: 16\u003c\/li\u003e\n\u003cli\u003eValve Spring Series: NexTek? Series\u003c\/li\u003e\n\u003cli\u003eValve Spring Type: Single Conical Ovate Wire\u003c\/li\u003e\n\u003cli\u003eValve Spring Coil Bind Height: 1.100\u003c\/li\u003e\n\u003cli\u003eValve Spring Rate: 353\u003c\/li\u003e\n\u003cli\u003eValve Lift - Maximum: 0.650\u003c\/li\u003e\n\u003cli\u003eInstalled Pressure and Height: 145 @ 1.811\u003c\/li\u003e\n\u003cli\u003eOpen Pressure and Height: 370 @ 1.161\u003c\/li\u003e\n\u003cli\u003eIndustry: Automotive\u003c\/li\u003e\n\u003cli\u003eOut of Stock Message: Call for Availability\u003c\/li\u003e\n\u003cli\u003eTitle: Manley Valve Spring, SPRING-1.311 SINGLE HEMI\u003c\/li\u003e\n\u003cli\u003eProp 65 Yes\/No: Yes\u003c\/li\u003e\n\u003cli\u003eProp 65 (C, R or CR): CR\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: Dodge\u003c\/li\u003e\n\u003cli\u003eEngine: 5.7L Hemi\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Manley Performance","offers":[{"title":"Default Title","offer_id":52481068204395,"sku":"MAN221431-16","price":446.29,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/9690\/4998\/files\/public_83279597-3db2-45b2-9dad-93d96a9873bc.jpg?v=1778199535","url":"https:\/\/www.raptorracing.com\/products\/manley-springs-single-hemi","provider":"Raptor Racing","version":"1.0","type":"link"}