i have a 93 da i dont have any internals at the moment but i was wondering would anything happen if i put aftermarket cams in without changing the springs rockerarms ext...

 

bump

 

The car won't run without any internals. To answer your question about the cams though. Some may only require stock springs and retainers, but you should get new ones anyways. It's always a great idea to have new springs when you put in new cams. Just get the ones that match your cams and you'll be fine. If you don't change them you could get valve float, coil bind and maybe some other harmful things could happen. Broken retainer blah blah blah

 

there are cams u can use without changing the springs and stuff(ex. for vtec cars- skunk2 stage 1's, ITR). just dont change the redline setting

 

if the lift is high enough you will bind the springs and slap a piston against a valve.