Ferrea Spring Kit Honda K20 & K24

105lb K20/K24 Drag Racing Valve Springs Kit includes the following:
- Dual Springs #S10100 (16) 
- Titanium Retainers (16) 
- Seat Locators (16) 
- Valve Locks (16) 

140lb K20/K24 High Lift Drag Racing Valves Springs Kit includes the following: 
- Dual Springs #S10149 (16) 
- Titanium Retainers (16) 
- Seat Locators (16) 
- Valve Locks (16) 

105lb K24Z3 - K24Z7 Valve Springs Kit includes the following:
- Dual Springs #S10164 (16)
- Titanium Retainers (16)
- Seat Locators (16)
- Valve Locks (16)

The K24Z3/Z7 is a different kit, be sure to select that if this is your head