3800 Series 2 Stroker kit i was reading it, sounds pretty nice. with it you can bore your engine out to a 4.05L but from what i read it doesnt handle high levels of boost/nitrous. it says it can handle up to about 10 lbs of boost safely, the manged to snap the crank in half with 14lbs of boost
also they only recommend using a 50 shot or less of the good ol spray, sorry james....
idk how much an LS1/LT1 stroker kit runs but this one is $1300. might have to look into this in the near future, idk...