pillagenburn

Just wondering how I can make the most out of a 6k rpm redline? I just dont know what I'd need as far as a port job is concerned. Also, is it possible to make that kind of power with a XE224/230, or can i use a XE230/236 and still only have to rev to 6000 rpm on heads that have the crap ported out of them? I know smaller valves means higher air velocity, but I don't know if i should spend the extra $600-800 in machine work to get larger valves..... anyone have any thoughts?

thanks!

treyZ28

u just want a 6000rpm redline?

i bet long tubes, catback, cut out, 1.6 rockers, CAI would get you close to it..

with just long tubes and a catback, i would be shifting early at 5700...

LT4 HC will get you there and then some

94SLUG

600-800 for valv job OUCH, sounds like way to much. Not sure what you mean here either . Do only want to spin to 6k or do you wanna know if you can go higher?

pillagenburn

Ok, sorry for confusion ...

how can i hit 400 RWHP with a 6,000 RPM redline (no higher, I'm paranoid about that stock bottom end). I dunno what kind of heads it would take, but I'm sure all the bolt-ons might get me kinda close...

bad95z28

i think it will be impossible to make anywhere close to 400rwhp only spinning to 6k. i'm shifting at 6200-6300 with the cc305.

pillagenburn

well, is a 62-6300 rpm redline really nasty for our bottom ends? Seems to me people have problems with breaking their bottom ends revving anywhere over 62-6300 rpm.....

thanks for the input!

treyZ28

guys spin to 6600 on the 306CC...

our bottom end is pretty stout...

i dont see a stock hydro roller making 400rwhp at anything below 6500 NA on LT1 castings...

well maybe if phil or combo does your heads, thats your best bet

edit:
I stand corrected
http://www.advancedinduction.com/
check out that first link to the 411rwhp..

the 400rwhp comes at around 5800rpms