{"product_id":"isky-isk9365-sp-sp-valve-springs-1-530od-225lb-1-950-seat-550lb-1-270-open","title":"Isky ISK9365-SP \"Sp\" Valve Springs 1.530\"OD 225LB @1.950\" Seat 550LB @1.270\" Open","description":"ISKY \"SP\" VALVE SPRINGS 1.530\"OD 225LB@1.950\" SEAT 550LB@1.270\" OPEN ISK9365-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):1.550 in.Coil Bind Height (in):1.170 in.Damper Spring Included:YesSpring Rate (lbs\/in):460 lbs.\/in.Inside Diameter of Outer Spring (in):1.135 in.Inside Diameter of Inner Spring (in):0.740 in.Valve Spring Style:StandardCoated:NoQuantity:Sold as a set of 16.Installed Height (in):1.950 in.Seat Pressure at Installed Height (lbs):225 lbs.Open Height (in):1.270 in.Open Pressure (lbs):550 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":44535913120055,"sku":"ISK9365-SP","price":728.25,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0680\/9364\/1015\/files\/91836_a42a127a-a8a5-43ab-a619-91ddc6cec4f8.jpg?v=1780611037","url":"https:\/\/enginemaster.com.au\/products\/isky-isk9365-sp-sp-valve-springs-1-530od-225lb-1-950-seat-550lb-1-270-open","provider":"Engine Master","version":"1.0","type":"link"}