Do NOT use these in a predator 212 hemi head, they will most likely coil bind. Please see my 10.8/18 pound springs for that application.
Genuine Honda part number 14751-883-000
Free height 1.455"
ID .635"
OD .790"
Coil Bind .550"
15 Pounds @ 1.00"
18 Pounds @ .870"
24 Pounds @ .750"
