I don't want to run any chances of floating a valve or over-reving the motor so I need to figure out what kind of RPM my valvetrain will be good for. I called the cam line at Comp Cams and spoke to a guy but I want as many opinions as I can get- plus it honestly sounded to me that he was just guessing anyway.

Here's my valvetrain, tell me what you think it will handle-

*Custom Comp Cam 236/248 .608/.578 111LSA
*Comp R series lifters
*Hardened pushrods
*GMPP 1.6 ratio roller rockers
*Comp "Beehive" 918 springs
*Comp 787-16 retainers
*Comp 601-16 locks
*Manley RaceFlo 2.00" intake valve
*Stock exhaust valve

 

I wouldn't start worrying till the high side of 6700 ho.

I spin mine to 6600. I'll get on AIM later and give you all my specs, heading to the gym right now.

 

Superb.

 

I'd say 6500 should be fairly safe with what your running........Not sure what kind of hardened pushrods you have, but for ultimate reliability, I'd make sure to have something real good like a comp hi-tech 80thou wall thickness pushrod....pushrods start to go thru hell above 6400.....