A simple tool i use to help tilt the engine forward in my gp (shoot, should work for more than that, depending on the engine mount configuration) I use a ratchet strap from the engine lift point to a heavy duty bracket on the front wall of my garage. I've tried to use the ratchet strap from the engine bracket to the radiator core support, but find that it is a bit too close for the ratchet straps i have.
YMMV, you may be able to use the core support.