[Oldsman]

get a good torque wrench. the felpro head gasket kit. I would replace the chain and tensioner at the same time. You may need to get them from gm part direct or dealer. Also if you have not replaced the water pump i would do that as well. use the correct procedure for removing the ccam towers and putting them back on.

I did mine and it wasn't bad but i did mine in a couple months being i was polishing and porting the head and other items