{"product_id":"porsche-value-spring-and-titanium-retainer-kit-9mm-911-914-6-930-1965-1994-hp10t9-hp109-hpss-pkg","title":"Porsche Value Spring and Titanium Retainer Kit - 9mm - 911 - 914-6 - 930 | 1965-1994  HP10T9-HP109-HPSS-PKG","description":"\u003cp\u003ePorsche 9mm Value Spring and Titanium Retainer Kit for 911 (1965-1994) , 914-6 (1970-1972), and 930 (1978-1979). \u003c\/p\u003e\n\u003cdiv class=\"flex max-w-full flex-col grow\"\u003e\n\u003cdiv data-message-author-role=\"assistant\" data-message-id=\"858a7706-51b3-4153-a08c-b391127cf702\" dir=\"auto\" data-message-model-slug=\"gpt-5-2\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal [.text-message+\u0026amp;]:mt-1\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden first:pt-[1px]\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert w-full wrap-break-word light markdown-new-styling\"\u003e\n\u003cp data-start=\"209\" data-end=\"468\"\u003eDesigned specifically for Porsche applications—not adapted from other platforms—this kit delivers a higher natural frequency than factory OE springs, making it ideal for performance and racing engines while helping minimize potential over-rev damage on track.\u003c\/p\u003e\n\u003cp data-start=\"470\" data-end=\"487\"\u003e\u003cstrong data-start=\"470\" data-end=\"485\"\u003eTech Specs:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"488\" data-end=\"683\"\u003e\n\u003cli data-start=\"488\" data-end=\"523\"\u003e\n\u003cp data-start=\"490\" data-end=\"523\"\u003eInstalled Height: 1.340” (34mm)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"524\" data-end=\"552\"\u003e\n\u003cp data-start=\"526\" data-end=\"552\"\u003eSeat Pressure: 70–80 lbs\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"553\" data-end=\"585\"\u003e\n\u003cp data-start=\"555\" data-end=\"585\"\u003eMax Valve Lift: .512” (13mm)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"586\" data-end=\"613\"\u003e\n\u003cp data-start=\"588\" data-end=\"613\"\u003eSpring Rate: 360 lbs\/in\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"614\" data-end=\"641\"\u003e\n\u003cp data-start=\"616\" data-end=\"641\"\u003eCoil Bind Height: 1.13”\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"642\" data-end=\"683\"\u003e\n\u003cp data-start=\"644\" data-end=\"683\"\u003eDual springs (includes damper spring)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"685\" data-end=\"703\"\u003e\u003cstrong data-start=\"685\" data-end=\"701\"\u003eDefinitions:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"704\" data-end=\"913\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\n\u003cli data-start=\"704\" data-end=\"764\"\u003e\n\u003cp data-start=\"706\" data-end=\"764\"\u003e\u003cem data-start=\"706\" data-end=\"725\"\u003eInstalled Height:\u003c\/em\u003e Spring height with the valve closed.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"765\" data-end=\"829\"\u003e\n\u003cp data-start=\"767\" data-end=\"829\"\u003e\u003cem data-start=\"767\" data-end=\"781\"\u003eOpen Height:\u003c\/em\u003e Spring height with the valve open under load.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"830\" data-end=\"913\" data-is-last-node=\"\"\u003e\n\u003cp data-start=\"832\" data-end=\"913\" data-is-last-node=\"\"\u003e\u003cem data-start=\"832\" data-end=\"844\"\u003eCoil Bind:\u003c\/em\u003e Point at which the spring is fully compressed and coils are stacked.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"border-token-border-default mt-2 border-t py-4 text-sm\"\u003e\n\u003cdiv class=\"flex flex-col justify-between gap-3 mt-3\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Other","offers":[{"title":"Default Title","offer_id":41274311901242,"sku":"HP10T9.HP109.HPSS.PKG","price":1057.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0549\/4846\/2650\/files\/Porsche-Value-Spring-and-Titanium-Retainer-Kit-9mm-0.png?v=1772831010","url":"https:\/\/sierramadrecollection.com\/products\/porsche-value-spring-and-titanium-retainer-kit-9mm-911-914-6-930-1965-1994-hp10t9-hp109-hpss-pkg","provider":"Sierra Madre Collection","version":"1.0","type":"link"}