it's a fully built motor. balance lower end, stiffer valve springs, everything. so yea...it can rev a bit higher than normal. I just posted a link to a video about the first build (stock block + lower CP pistons + 16psi boost = 440 whp). and a link to the nasioc thread about the build. http://www.mnsubaru.com/forums/showthread.php?t=14715
I wouldn't mind an H6 with that kind of power or redline. They need to find some longer straights, though. Not enough high speed!
