{"product_id":"straight-valve-springs-retainers-keepers-kit-gm-6-6l-duramax-2001-2016","title":"2001-2016 GM 6.6L Duramax Straight Valve Springs, Retainers, and Keepers Kit","description":"\u003ch2\u003eStraight Valve Springs, Retainers, and Keepers Kit\u003c\/h2\u003e\n\u003cp\u003eThis is the spring kit that comes standard with the PPE Cast Iron Cylinder Heads. Kit features straight valve springs with an installed pressure of 85-90 pounds, which offers higher responsiveness and better boost handling.\u003c\/p\u003e\n\u003cp\u003eThe spring retainers and seats are made of case-hardened high-strength chromoly steel for superior wear resistance. The FKM valve seals are tailored to the Cast Iron Heads’ valve guides for a tight seal.\u003c\/p\u003e\n\u003cp\u003eEach kit services two complete cylinder heads.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKit includes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e32 springs\u003c\/li\u003e\n\u003cli\u003e32 spring retainers\u003c\/li\u003e\n\u003cli\u003e32 spring seats\u003c\/li\u003e\n\u003cli\u003e32 sets of valve keepers\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Pacific Performance Engineering","offers":[{"title":"Default Title","offer_id":49501621354736,"sku":"110090053","price":599.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1232\/8250\/files\/Straight-Valve-Springs-Retainers-Keepers-Kit-GM-6-6L-Duramax-2001-2016_110090053_01.jpg?v=1775354126","url":"https:\/\/www.hitechclassics.com\/products\/straight-valve-springs-retainers-keepers-kit-gm-6-6l-duramax-2001-2016","provider":"Hi Tech Classics","version":"1.0","type":"link"}