I was curious if you could use gsr dual valvesprings as exhaust springs in b16a1 head. It already has dual intake but single exhaust. I got some inner valve springs laying around and figured it wouldn't hurt to put them in a b16a1 head. Anyone know or done it b4?

 

Yes you can.

 

thanks. what would be a safe rev for them? Maybe 8400 or 8500ish?

 

You can go that high. I definitely wouldn't recommend anything higher.