Whats that noise coming from my 318?

67Dart273 said
I would not replace all lifters without going to a little hotter cam. One or two, maybe. Keep an eye on the oil for water / coolant, get it GOOD and warm to drive out condensation after changing oil and filter

If you don't replace them all at once then you would be just guessing at which ones were bad and probably have to tear into it again.

Easier to replace the whole set at once