{"product_id":"manley-valve-spring-spring-1-620-double","title":"Manley Valve Spring, SPRING-1.620 DOUBLE","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\u003cul\u003e\n\u003cli\u003eSpecially processed premium-grade chrome silicon that is virtually free of impurities or surface irregularities\u003c\/li\u003e\n\u003cli\u003eTested by leading engine builders and are confirmed to be the best performing valve springs on the market today\u003c\/li\u003e\n\u003cli\u003eNo degradation of spring pressure in the later stages of a race\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Manley Performance","offers":[{"title":"Default Title","offer_id":48435975848163,"sku":"MAN221445P-16","price":630.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0776\/5632\/6371\/files\/36bd5f62532161f88eff3710d0ba50e1L.jpg?v=1773334615","url":"https:\/\/fast-world-problems.myshopify.com\/products\/manley-valve-spring-spring-1-620-double","provider":"Fast World Problems","version":"1.0","type":"link"}