You can heat the engine in the oven at 350 degrees for 15 min, then put the bearing in the freezer, around 20 to 30 minutes, once the engine is hot, pull it out with gloves, pull the bearing out of the freezer, it will slip in easily. I usually put the crank in the engine first, that way when you put the bearing over the crank, it lines up perfectly, make sure the bearing is down as far as it will go. Then your good to go.