{"product_id":"beehive-hustler-spring-for-gm-604-ct525-ls-crate-engine","title":"COMP Cams H604-1 - Beehive Hustler Spring for GM 604\/CT525 LS Crate Engine","description":"\u003cp\u003eThe COMP Cams Hustler Valve Spring is an improved version of the popular GM LS6 \"blue\" valve spring. It's based on the popular GM part #12499224 and #12565313 LS6 springs but with 4% higher seat and open loads for better dynamic control, as well as an extra .020\" of lift capability. An excellent performance upgrade in GM 603\/604 and CT525 LS crate Race Applications with tight rules packages.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBottom Inside Diameter:\u003c\/strong\u003e 0.86\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBottom Outside Diameter:\u003c\/strong\u003e 1.282\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eC.A.R.B. Exempt for California Certified Vehicles Manufactured Before 1965?:\u003c\/strong\u003e Yes, but must meet tailpipe emission standards for year of vehicle.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eC.A.R.B. Exempt for Federally Certified Vehicles Manufactured Before 1967?:\u003c\/strong\u003e Yes, but must meet tailpipe emission standards for year of vehicle.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eC.A.R.B. Exempt for Foreign Vehicles Manufactured Before 1967?:\u003c\/strong\u003e Yes, but must meet tailpipe emission standards for year of vehicle.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eC.A.R.B. Exempt for On-Road Vehicles?:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eC.A.R.B. Exempt for Racing and Off-Road Only Vehicles?:\u003c\/strong\u003e Yes, but must be a race\/competition only vehicle.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eC.A.R.B. Exemption Reason:\u003c\/strong\u003e No impact on pollution output of vehicle.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoil Bind Height:\u003c\/strong\u003e 1.181\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Chromemoly Steel Retainer:\u003c\/strong\u003e 774-1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Shims:\u003c\/strong\u003e 4753\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Spring Seat \/ Seals:\u003c\/strong\u003e 528-KIT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Titanium Retainer:\u003c\/strong\u003e 722-1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Tool Steel Retainer:\u003c\/strong\u003e 1772-1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDamper:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstalled Height:\u003c\/strong\u003e 1.8\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Springs:\u003c\/strong\u003e 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOpen Load:\u003c\/strong\u003e 304\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeat Pressure:\u003c\/strong\u003e 92\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpring Rate:\u003c\/strong\u003e 386\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpring Style:\u003c\/strong\u003e Beehive\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTop Inside Diameter:\u003c\/strong\u003e 0.655\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTop Outside Diameter:\u003c\/strong\u003e 1.077\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve Spring Series:\u003c\/strong\u003e Performance Street\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"COMP Cams","offers":[{"title":"Default Title","offer_id":45517294174343,"sku":"COMH604-1","price":55.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0744\/4008\/1543\/files\/H604-1.jpg?v=1788268467","url":"https:\/\/checkout.northernperformance.ca\/products\/beehive-hustler-spring-for-gm-604-ct525-ls-crate-engine","provider":"Northern Performance","version":"1.0","type":"link"}