I'm real truck poor (too many) but I recently bought a 2001 Chevy Z71 4x4 fishing truck. It's a high-mileage truck with 240k, but it sure runs and drives good.

I had about everything checked out and the mechanic couldn't find anything it needed, except brake pads which I will do myself.

My question is how reliable are the 5.3 motors in a 2001? Looks like I lucked out and got one before the 4-cyl shutoff (AFM) deal.

At 240k should I begin motor shopping? What's the average cost?

Thanks