Not sure if this is in the right section, please move if not. Have an LS im going to swap, and was just wondering what kind of things i should replace before hand. Motor has about 100k miles on it. Car ran great before pulled. I plan on doing the timing belt/tensioner/waterpump, anything else i should be concerned with?

 

aside from doing the timing belt maintenance, change the oil, maybe put some fresh spark plugs in it and adjust the valves.

and because i am a little OCD, I would clean that engine up as much as possible before putting it in the car.

 

sounds good, appreciate the help.

 

New valve seals.

 

I have about 155k on mine, did the timing belt, water pump, thermostat, spark plugs/wires, new vc seals and spark plug tube seals, i would recommend OEM for the seals.

 

replace all seals and gaskets

 

I concur, these ***** always go out.

 

Yes, may as well do the valve seals as they do tend to start packing up around that age. As others mentioned the timing belt should be replaced as well. If there's any sign of oil leakage I'd be inclined to change the rear main seal and oil pan gasket too for good measure. Everything is a piece of cake while the engine is out, so you might as well take advantage of it.

 

good call on the valve seals, didnt even think about that.