What's the procedure for replacing cam bearings? I've never done it before, but I have access to a SBC cam bearing removal/install tool. Does the engine have to be out of the car?

 

Unless you are a magician, it would be easier remove the engine from the car.
Once out the can be removed and re-installed with the specialized tool.

 

the crank and rods should be out for a proper install also you have to line up the holes with the cam bearings and the oil passages for cam lubrication...... with a bare block i installed mine in about 5 minutes

 

Yes, the engine will need to be out of the car. It's not hard to do with the correct tool. Just make sure you orient the oiling holes correctly.

 

Make damn sure ya clock them right or ya will ruin them in a heart beat,along with the cam and other things.