Originally Posted by Half Fast
A 6" rod will leave less meat in the piston for the ring pack. With boost or N2O you'd be better off with a 5.85 or 5.7 rod unless you're building a motor to go 150k miles. Go with all forged internals and put the money in the valvetrain if you want high rpms.
all that just depends on the piston used. the oil ring hanging in the pin hole doesn't seem to be a big deal these days....so they still put the rings where they are best for the app ordered. the last ones i messed with were from a dsm and the stock length rods have to have support rings for the oil ring because i was in the pin hole. JE said is was no big deal. and didn't seem to be.
be different and put a 327 crank in a 400 with the rod to match.. lol
but yeah put the money in the valvetrain.