I will be installing h/c/i, long tubes, and an ls2 timing chain in my 99 trans am. Do I need to remove the motor? I've done heads, cam, and intake on a 383 in a 68 camaro that didn't have the radiator or grill in yet, and it was pretty easy. I've also replaced the head and cams in some dohc hondas, but I haven't done any motor work on a 4th gen f-body, so I just need advice on spacial issues with these cars.
Thanks in advance.

 

no I (along with most here) did it with the motor in

 

I am about to finish mine up right now... There is plenty of room to do this with the engine still in the car.. One of the most important things is to get all the coolant out of the head bolt holes.
Here is a great site to use.http://ls1howto.com/

 

Great. Thats the answer I was hoping for. I don't really have enough room in the garage to pull the motor with my dads cars taking up most of the floor space. Thanks for the website 99LSS1.

 

No problem... Good luck to you.