Isky Valve Spring Set, Max-Life Series, Dual Spring / Damper, 644 lb/in Spring Rate, 1.150" Coil Bind, 1.570" OD, Set of 16 SKU ISK-9987-RADML $816.67 Quantity discounts available QuantityPrice (0)No Reviews yet Number of Pieces Item Custom Price Quantity -+ Add to Cart Details MAX-LIFE Super Endurance Roller Valve SpringDual w/DamperOuter OD/ID 1.570/1.146in.Inner OD/ID 1.044/0.748in.Seat Pres 275lbs at 2.00in.Open Pres. 790... Details Back DetailsMAX-LIFE Super Endurance Roller Valve SpringDual w/DamperOuter OD/ID 1.570/1.146in.Inner OD/ID 1.044/0.748in.Seat Pres 275lbs at 2.00in.Open Pres. 790lbs at 1.200in.Product Features:Revolutionary New Alloy SteelFor The Most Aggressive Endurance Racing Apps Ratings & ReviewsNo reviews availableBe the first to Write a Review