{"product_id":"z28-style-valve-spring-set-for-chevy-sbc-283-305-307-327-350-400","title":"GPQ New Z28 Style Valve Spring Retainer Lock Set Fit for Chevy 283 305 307 327 350 400 Small Block SBC Valve Springs Kit","description":"\u003cdiv id=\"aplus\" class=\"a-section a-spacing-large bucket\"\u003e\n\u003cdiv lang=\"en_US\"\u003e\n\u003cdiv class=\"aplus-v2 desktop celwidget\"\u003e\n\u003cdiv class=\"aplus-content-wrapper\"\u003e\n\u003cdiv class=\"celwidget aplus-module module-6 aplus-standard\"\u003e\n\u003cdiv class=\"aplus-module-wrapper apm-fixed-width\"\u003e\n\u003cdiv id=\"aplus-module-6-3\" class=\"aplus-module-content\"\u003e\n\u003cdiv class=\"apm-hovermodule\"\u003e\n\u003cdiv class=\"apm-hovermodule-slidecontrol\"\u003e\n\u003cdiv class=\"apm-hovermodule-smallimage celwidget apm-hovermodule-opacitymodon\"\u003e\n\u003cdiv class=\"a-section a-spacing-mini apm-hovermodule-smallimage-bg\"\u003e\n\u003ch3\u003e\u003cspan data-spm-anchor-id=\"5176.28103460.0.i9.35a72988Fd6f5m\"\u003e🚗 High Performance Beehive Valve Spring Kit – For .500\" Lift\u003c\/span\u003e\u003c\/h3\u003e\n\u003cdiv\u003eUpgrade your engine’s valvetrain with this high-performance Beehive Valve Spring Kit. Engineered and tested to meet or exceed original equipment standards, this kit delivers improved valve control, better durability, and reliable performance under higher lift applications.\u003c\/div\u003e\n\u003ch3\u003e🔧 Product Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eEngineered and tested to meet or exceed OEM standards and performance\u003c\/li\u003e\n\u003cli\u003eDesigned for \u003cstrong\u003e.500\" lift\u003c\/strong\u003e cam applications\u003c\/li\u003e\n\u003cli\u003eBeehive spring design helps reduce valve train mass and improve high-RPM stability\u003c\/li\u003e\n\u003cli\u003eIncludes hardened valve retainers and precision valve locks for secure installation\u003c\/li\u003e\n\u003cli\u003eSuitable for performance builds, engine rebuilds, and valvetrain upgrades\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e📐 Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutside Diameter:\u003c\/strong\u003e 1.260\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInside Diameter:\u003c\/strong\u003e 0.785\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClosed Pressure:\u003c\/strong\u003e 114 lbs @ 1.710\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOpen Pressure:\u003c\/strong\u003e 318 lbs @ 1.210\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoil Bind Height:\u003c\/strong\u003e 1.160\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpring Type:\u003c\/strong\u003e Double with Damper\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLift Compatibility:\u003c\/strong\u003e .500\"\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e📦 Package Includes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e16 × Beehive Valve Springs\u003c\/li\u003e\n\u003cli\u003e16 × Hardened Valve Retainers\u003c\/li\u003e\n\u003cli\u003e32 × Valve Locks\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e⚠️ Fitment Notice\u003c\/h3\u003e\n\u003cdiv\u003ePlease verify your engine specifications, cam lift, spring dimensions, and retainer compatibility before purchasing. This kit is designed for performance applications and may require professional installation.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"clear: both;\"\u003e \u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e","brand":"GPQ","offers":[{"title":"Default Title","offer_id":67611121352856,"sku":"X002SRM4ML-Raw-0930","price":59.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0757\/7763\/8552\/files\/New_Z28_Style_Valve_Spring_Retainer_Lock_Set_for_Chevy_400_350_327_307_283.jpg?v=1791446966","url":"https:\/\/gpqengine.com\/products\/z28-style-valve-spring-set-for-chevy-sbc-283-305-307-327-350-400","provider":"GpqEngine","version":"1.0","type":"link"}