DynoCams ProductsDucar EnginesBriggs and Stratton EnginesHarbor Freight EnginesClone 13hp EngineEngine ToolsCharger Racing ChassisKarting AccessoriesMeasurement DevicesTillotson CarbsTire PrepLubricants Categories HomeBriggs and Stratton EnginesAnimal EngineAftermarket PartsSprings DCS-AN 18lb Valve Spring, Animal $2.45 DCS-AN2 20lb Valve Spring, Heavy Duty, Animal $2.45 DCSS-S 32lb Dual Valve Spring Set $36.00 DCSSH-AN 36lb Dual Valve Spring Set with Hardware, Animal $34.00 DCSSH-HD-AN 38lb Dual Valve Spring Set with Hardware, Animal $36.00