Hello Everyone!
This is my recent purchase, Toyota Crown:


Now coming to the issue, the engine has blown off and i need suggestions for the same. My mechanic is of the view that spending on the current engine would be of no use and the same should be replaced. Currently, its running a 3000cc petrol engine. I need suggestions from the experts here specifically related to the most suitable engine without any modifications.
Main thing to be considered is that it has to be auto tranny!
Waiting for your valuable input and whether you agree with my mechanic or not!!