[YELO-ZX3]

I would like to know that do I really need the crower valve springs and retainers for the crower stage 2 cams? (or I can just use the stock ones)

will I get into any engine problem later on due to not intalling them with the crower stg 2??

thanks a lot.

 

[SuperMatt]

You don't NEED springs and retainers unless you want to rev past the stock limiter. If you're just dropping in the cams, you should be okay. If you are going to have the head off the car, you may as well do the springs and retainers.