{"product_id":"psi-660-lift-beehive-springs-psi-1516ml","title":"PSI .660\" LIFT BEEHIVE SPRINGS - PSI-1516ML","description":"\u003cp\u003e\u003cstrong\u003ePSI 1516ML .660\" Lift Beehive Valve Springs (Set of 16) for Gen 3 \u0026amp; 4 LS Engines\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eChoose the PSI 1516ML Beehive Valve Spring Set for a reliable, high-performance upgrade that meets the rigorous demands of endurance racing while ensuring consistent and stable engine performance.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eSpring Specs:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eSeat Pressure: 150 lbs @ 1.800\"\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eOpen Pressure: 420 lbs @1.140\"\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eCoil Bind @ 1.080\"\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e1.290\" OD\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e.640\" ID\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThe PSI Beehive Valve Spring Set 1516ML is engineered for high-performance racing applications, offering superior durability and performance enhancements tailored specifically for Circle Track and Road Circuit teams. This series builds upon the benefits of the renowned 1200 series by incorporating an advanced in-house nitriding process. This process increases the surface strength of the wire, enhancing fatigue resistance and longevity, even under the extreme stresses of competitive racing. While the nitriding process introduces a slight softening of the core material, it significantly boosts endurance, making it ideal for applications that demand extended durability without compromising performance.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAdvanced Nitriding Process: Increases surface strength while optimizing the material for enhanced endurance and fatigue resistance.\u003c\/li\u003e\n\u003cli\u003eDesigned for Circle Track and Road Circuit Racing: Ideal for teams focused on endurance and long-term reliability, where resistance to fatigue is critical.\u003c\/li\u003e\n\u003cli\u003e.660″ Lift Capability: Engineered for high lift applications, allowing for improved airflow and overall engine performance.\u003c\/li\u003e\n\u003cli\u003eBeehive Design: Reduces mass, improves stability, and minimizes valve float for more consistent performance across a range of RPMs.\u003c\/li\u003e\n\u003cli\u003eEnhanced Material Properties: The nitriding process balances increased surface hardness with a slightly softened core, optimizing strength without compromising flexibility.\u003c\/li\u003e\n\u003cli\u003eNot Recommended for Drag Racing: The trade-off in core hardness is less suitable for drag racing, where peak strength is prioritized over endurance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"PSI","offers":[{"title":"Default Title","offer_id":45972081017030,"sku":"PSI-1516ML","price":365.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2716\/4086\/products\/brian-tooley-racing-psi-650-lift-beehive-springs-psi-1515ml-33249809006790.jpg?v=1651260106","url":"https:\/\/www.glennsautoperformance.com\/products\/psi-660-lift-beehive-springs-psi-1516ml","provider":"Glenn's Auto Performance","version":"1.0","type":"link"}