nope you'd have to use ls rods with gsr pistons on the ls crank .. but that's just a waste of time, money, and effort.

You can, however, use the ls crank, rods, and pistons in a gsr block. Just either you'd have to but the golden eagle kit, or you can just heat up the oil squirters and tap it gently with a hammer.

you can find a thread about it here:

http://www.honda-tech.com/zerothread?id=1837872&page=4