Redline'n
Redline is that the beginning of the red the red or the end.... I hit the beginning part 6000 rpm 4-5 times daily never ever go past that too scared.... Where is the point were extra rpm diminishes horsepower(back side of the power curve)?
On a stock motor you should never hit the back of the red, you may get somewhere into the red occasionally but you should not get into it often.
As for DYNO plot where the HP falls off that is where they hit the clutch to change into 2nd because they are hitting their redline!
As for DYNO plot where the HP falls off that is where they hit the clutch to change into 2nd because they are hitting their redline!
I've done it constantly and have otherwise driven it hard for the past 50k miles that I've had it and have had absolutely zero problems a as result. It still runs like new.
I even accidently misshifted and hit 8k once. 
It is true that your power really drops off after 6k on a LS, but it's still beneficial to shift in the red because staying in the lower gear delivers more torque to the wheels. I'm not sure what the optimal shift point is for a stock LS, but based on the dyno of my LS with I/H/E, shifting at approximately 7100 rpm will deliver the most torque to the wheels. That's based on my engine's torque output up to 7200 rpm, gear / final drive ratios, and the calculated actual torque at the wheels (the dyno plot factors out the effect of gearing, but I put it back in).
I even accidently misshifted and hit 8k once. 
It is true that your power really drops off after 6k on a LS, but it's still beneficial to shift in the red because staying in the lower gear delivers more torque to the wheels. I'm not sure what the optimal shift point is for a stock LS, but based on the dyno of my LS with I/H/E, shifting at approximately 7100 rpm will deliver the most torque to the wheels. That's based on my engine's torque output up to 7200 rpm, gear / final drive ratios, and the calculated actual torque at the wheels (the dyno plot factors out the effect of gearing, but I put it back in).


