{"product_id":"isky-isk9375-plus-endurance-plus-valve-springs-1-560od-230lb-seat-560lb-open","title":"Isky ISK9375-PLUS Endurance Plus Valve Springs 1.560\"OD 230LB Seat 560LB Open","description":"ISKY ENDURANCE PLUS VALVE SPRINGS 1.560\"OD 230LB SEAT 560LB OPEN ISK9375-PLUSThe Endurance Plus series of valve springs utilises a specially processed Tool Room Material for increased endurance and reliability beyond the \"SP\" series plus special processing for increased durability. Endurance Plus springs are designed for late models, modifieds, etc and are Spintron Test-Proven up to 8400 rpm for 850 racing miles.Specs:Number of Springs Per Valve:DualOutside Diameter of Outer Spring (in):1.560 in.Coil Bind Height (in):1.190 in.Damper Spring Included:YesSpring Rate (lbs\/in):480 lbs.\/in.Inside Diameter of Outer Spring (in):1.145 in.Inside Diameter of Inner Spring (in):0.740 in.Valve Spring Style:StandardCoated:NoQuantity:Sold as a set of 16.Installed Height (in):1.970 in.Seat Pressure at Installed Height (lbs):230 lbs.Open Height (in):1.290 in.Open Pressure (lbs):560 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":44542713004343,"sku":"ISK9375-PLUS","price":860.05,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0680\/9364\/1015\/files\/91840.jpg?v=1780426079","url":"https:\/\/enginemaster.com.au\/products\/isky-isk9375-plus-endurance-plus-valve-springs-1-560od-230lb-seat-560lb-open","provider":"Engine Master","version":"1.0","type":"link"}