Endurance engine
 

Hey everyone,
I may need to replace the engine in my 96' f150 soon. Its a 5.0 I was looking online at advanced auto for rebuilt engines and they have 2 listed. 1 regular 5.0 and one that says "High endurance". What is the difference?

what is the problem with the one that's in the truck now?

Its got a little over 300K miles and is starting to develop a slight knock on start-up....its almost time to put that engine to rest and get a new one.

it might be better to have that one rebuilt that way you're not going to get something that won't give more trouble than it's worth

could be cheaper as well