is this a good cam with 5.3 lm7 heads; comp cam specs are .581/.592 lift. 224/230 duration @.050 with a 114 lobe seperation.

 

Good for what? Forced Induction? NA? Street car? Drag car? Weekend car?

Your question is too vague.

 

For a street car, trying to reach around 400hp

 

Daily driver or weekend car?

It'd be decent for a daily driver, but on the tame side if you have a weekend car.

I'd go with the Futral Motorsports F-13 for the best of both worlds.

 

I don't want to have to change anything else but the cam, can i do this with this cam...

 

the cost of labor of putting New valve springs and pushrods is minimal considering the benefit. you should always want to do that, or buy a S/C and get it tuned. Why are you talking about changing out heads but not replacing the valve springs and such? that is ridiculous

 

You can NOT change just the cam. You have to support the higher lift with better valve springs and pushrods at the very minimum.

 

bigdawg6114, you have PMed me numerous times about this situation along with posting threads on the board while all along getting the same answer:

YOU MUST CHANGE OUT YOUR VALVETRAIN AND OTHER SUPPORTING PARTS WHEN USING AN AFTERMARKET CAMSHAFT INCLUDING, BUT NOT LIMITED TO:
Valvesprings, pushrods, timing set, and oil pump

 

Guys thanks for the input. I apologize if i ask, but i am a newbie when it comes to this and you get people telling you different things. Kraest you've been great. I really appreciate your help and your patients