Set of 16 springs, 8 comp 918s that are new in box from comp (replacements for their defective ones) and 8 921s with less than 500 miles on them. Titanium retainers and steel seats for the 921s, stock retainers for the 918s, shims, and locks will also be included. $125 shipped.

 

Do 918 and 921 have the same spring rates?

 

No, 921s are a bit more aggressive. These would be used when you need more control of the intake valve, which is heavier than the exhaust.

 

Oh ok the cam I'm leaning towards is 219/227 .595/.598 it's just a mild setup no need for different spring rates

Glws

 

TTT Make me an offer.