Visit the Team Iceshanty Proshop
I don't specifically target pike through the ice (sadly, because we don't have them in eastern PA...) but I agree with Boatman. If a bait is dead, I don't think the PA fish commission prohibits its use. If you want to target pike and other large species of predatory fish, you may want to go in a different direction on your baits and try to "match the hatch'. In my experience, fish of any species tend to eat what they see on a regular basis. In the case of pike and other large predatory fish in most PA lakes, that bait is perch. Whether you are using them live or dead, a perch is really hard to beat as bait for big gamefish. Simply jig up a few small perch (4-7') and rig them on a quick strike rig on a tip up and then... wait. Pike, pickerel, walleye, bass, catfish and even muskies prey heavily on perch. Just remember to check the regs where you are fishing for size and creel limits for perch. Every perch you keep counts toward your creel limit and like all other fish species, they may be subject to size limits so just make sure you are compliant.