{"product_id":"isky-isk8205-sp-sp-valve-springs-1-530od-150lb-1-900-seat-440lb-1-300-open","title":"Isky ISK8205-SP \"Sp\" Valve Springs 1.530\"OD 150LB @1.900\" Seat 440LB @1.300\" Open","description":"ISKY \"SP\" VALVE SPRINGS 1.530\"OD 150LB@1.900\" SEAT 440LB@1.300\" OPEN ISK8205-SPThe \"SP\" series utilises \"Hi-Tensile\" Chrome Silicon outer material. For applications with radical cams and\/or moderately high rpm, where traditional chrome silicon springs prove inadequate, the \"SP\" series is the next highest level of endurance. All \"SP\" series springs are Spintron Test-Proven up to 8000 rpm for 700 racing miles.Specs:Number of Springs Per Valve:DualOutside Diameter of Outer Spring (in):1.530 in.Coil Bind Height (in):1.150 in.Damper Spring Included:YesSpring Rate (lbs\/in):440 lbs.\/in.Inside Diameter of Outer Spring (in):1.005 in.Inside Diameter of Inner Spring (in):0.730 in.Valve Spring Style:StandardCoated:NoQuantity:Sold as a set of 16.Installed Height (in):1.900 in.Seat Pressure at Installed Height (lbs):150 lbs.Open Height (in):1.300 in.Open Pressure (lbs):440 lbs.Items are shipped within one to two business days after full payment has been recieved. \u003cbr\u003e\u003cbr\u003e\u003cbr\u003e","brand":"Isky Racing Cams","offers":[{"title":"Default Title","offer_id":44554300195127,"sku":"ISK8205-SP","price":582.4,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0680\/9364\/1015\/files\/91810.jpg?v=1780487419","url":"https:\/\/enginemaster.com.au\/products\/isky-isk8205-sp-sp-valve-springs-1-530od-150lb-1-900-seat-440lb-1-300-open","provider":"Engine Master","version":"1.0","type":"link"}