98 3.1 using coolant and soft hoses

Hey ALL,

We are purchasing my parents 98 Monte Carlo (posted here because it appears theres more traffic).

The car has the 3.1 engine with 75K miles.

I went to check it out yesterday. The car went through the reservoir full of coolant in about 500 miles. The upper radiator hose is not hard or under pressure after driving for about 30 minutes.

My question is this. Where can I find the NEW PART NUMBERS for the better intake gaskets? I am going to do the repair myself.

I've also read that I should replace all the lower intake bolts as well to be sure that they are sealed and get a good torque reading.

Thanks in advance for your input.