{"product_id":"valve-spring-set-6","title":"Valve Spring Set","description":"\u003cp\u003eManley .490 valve spring kit features OD springs with steel top collars. Interference fit to reduce harmonics and control spring surge.\n\u003cbr\u003eSprings have 20% more pressure than stock. No machining required for installation. Use with stock lift cams to .490. Uses stock lower collars.\u003c\/p\u003e","brand":"Manley","offers":[{"title":"Default Title","offer_id":67623304102073,"sku":"11-9609","price":230.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0775\/0179\/2441\/files\/11-9609a.jpg?v=1790877065","url":"https:\/\/www.thespeedshopusa.com\/fr\/products\/valve-spring-set-6","provider":"THE SPEED SHOP USA","version":"1.0","type":"link"}