{"product_id":"manley-gm-ls-series-660in-max-lift-valve-spring-and-retainer-kit","title":"Manley GM LS Series .660in Max Lift Valve Spring and Retainer Kit","description":"\u003cp\u003eManley LS and LT Valve Spring Kits provide a complete, engineered solution, ensuring seamless compatibility for higher-lift camshafts and eliminating concerns with mismatched components.NexTek? Valve Springs are manufactured from \"super clean\" Hi-Tensile Chrome Silicon steel and shot-peened to MIL spec for maximum fatigue life. Spring No. 221436-167? Steel Retainer CNC machined to exacting tolerances and made of thru-hardened 4140 chromoly. Retainer No. 23621-16 (+.050\" Installed Height)I.D. Valve Spring Locator is CNC machined, heat treated, and black oxide finished. Locator No. 42334-16 (.505\" ID)7? Machined Valve Locks use the highest quality steel alloy and are heat treated and black oxide finished. For 8mm (.3135\") valve stem. Lock No. 13098-16Viton Valve Stem Seals offer exceptional resistance to heat, chemicals, and oils. Seal No. 24042-16Note: Max. lift figures above may vary depending upon the cylinder head and installed height.\u003c\/p\u003e","brand":"Manley Performance","offers":[{"title":"Default Title","offer_id":47151717712039,"sku":"MAN26362134KS","price":642.66,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0555\/8344\/1063\/files\/5191b24b2e8e9fe43b3b404b01d13d5fL.jpg?v=1761050385","url":"https:\/\/www.straightsiximports.com\/products\/manley-gm-ls-series-660in-max-lift-valve-spring-and-retainer-kit","provider":"Straight Six Imports","version":"1.0","type":"link"}