i have a rebuilt LS1 sitting in the garage, it has sat for about a year now. Is there anything I should do with it while waiting to put it in the car?

 

not really maybe spin it over sum if theres oil to lube the parts all i would think of but ive seen motors sat for 15 years put new gaskets and oil in and ran like a champ

 

You just want to make sure nothing rusts internally. It would be a good idea to circulate some oil through it and manually spin it as mentioned above to the rings don't rust to the cylinders.

Also make sure all the intake/exhaust ports are sealed off so stuff doesn't get inside and try to prevent moisture from getting at the engine.

 

yeah havin the top of the motor sealed off is a huge thing cause a friend of mine took the top of the motor off and it sat for a year out side still in the car but thought it be fine since it still had a hood on it and well it didnt turn out well