{"product_id":"manley-chevy-sbc-ls-series-nextek-series-high-performance-valve-springs-2-valves-per-cylinder-221436-16","title":"Manley Chevy SBC LS-Series NexTek Series High Performance Valve Springs (2 valves per cylinder) - 221436-16","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\u003cp\u003eManley Valve Spring, SPRING-1.290 DOUBLE.\u003c\/p\u003e\n\u003ch4\u003eFeatures \u0026amp; Benefits\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eTightly controlled open-end flatness reduces valve stem side loading\u003c\/li\u003e\n\u003cli\u003eManufactured from “super clean” Hi-Tensile Chrome Silicon steel\u003c\/li\u003e\n\u003cli\u003eProprietary multi-step heat treating minimizes load loss\u003c\/li\u003e\n\u003cli\u003eTip thickness designed to eliminate overload breakage\u003c\/li\u003e\n\u003cli\u003eShot-peened to MIL spec for max fatigue life\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Manley Performance","offers":[{"title":"Default Title","offer_id":46460580102280,"sku":"man221436-16","price":291.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/2491\/6104\/files\/group-363b9d0a-026d-423d-b1c7-4c74cc9039af-800_1e9439bd-55cc-4b30-b673-3c368ff7c018.jpg?v=1787943971","url":"https:\/\/www.allianceracing.com\/products\/manley-chevy-sbc-ls-series-nextek-series-high-performance-valve-springs-2-valves-per-cylinder-221436-16","provider":"Alliance Racing","version":"1.0","type":"link"}