get a helper, idk how long it took, but it was a pain in the butt doing by myself.

 

Mine was part of an engine replacment. Just a guess but the whole job will come down to the tools you have and how well the exhaust manifold bolts come out. You break off a manifold bolt and you may be pulling a head.

Make sure you have 6 point sockets only and swivel everything. You want to be sure the torque is applied at right angles to the bolt. A swivel ratchet will be well worth the investment.

 

Personally. If you plan on doing the exhaust headers you might as well do other things while you have everything ripped apart. I had no problem doing the job with deep sockets. No swivels needed in my case. I nice long breaker bar I stole from my jack, and a LOT of Liquid wrench.

 

Yeah, do your O2s catalytic converter. Save yourself the time and pain and just replace all that **** at once