I have a set of zex stage 2 camshafts laying around and i wanted to installed them in my b 18c1 but im afraid that they will outperform my bottom end because i have factory rod bolts, and rods so im not sure if i should install them? please give me some good opinions on what i should do. they provide with good mid-range torque and up to 25 hp gains to the wheel for than the gsr cams so im not sure on what to do? here are the specs for the cams. please give me your opinions on installing these cams.

Valve Lift:
VTEC: .490" .450"
PRI: .380" .370"
SEC: .270" .270

Advertised duration:
VTEC: 278° 284°
PRI: 256° 260°
SEC: 244° 244°

Duration At 0.050":
VTEC: 238° 240°
PRI: 214° 214°
SEC: 198° 198°

Centerline:
VTEC: 100° 108°
PRI: 112° 112°
SEC: 114° 110°

 

they can not "outperform" your bottom end. Only RPMs will hurt your bottom end.

 

till what rpm will it damage my bottom end? some say until 8600 is it true? plus the guy i bought them from said he was redlining to 10k with stock bottom end. he just upgraded valvetrain is that true?