So decided to go with a used engine, with about 97k according to the mechanic. Just would like to know, after a used engine is put in, are there any things I should keep my eye on? Never had it done before, so I'm wondering if there are any complications or things that can go wrong. Im going to use the Castrol high mileage 10w30 oil, along with Prestone antifreeze for the coolant.
The guys are working to remove the blown 3800 series 2, waiting for the used one to arrive. I will update on the status in the coming days.
Thanks for the continued advice Automotive Forum!