Is it wrong to install heads with exhaust manifold atached

[1993Saturn]

I have taken the heads off with the exhaust manifold attached. I tried taking off the exhaust manifolds first, but it is really tough and one bolt I stripped the head so I had to leave it on and cut off bolt later.
Now to reinstall heads, I would sure like to have them already attached first. BUT, could that weight off to the side cantilever the heads causing problems sealing the head gasket?

 

[Gary Crist]

NO. You have saved time.

 

[1993Saturn]

That's good. Any other opinions out there? Let's start a census.

 

[MrQ]

This shouldn't be a problem. If you got them out with the manifolds on they should go back in just fine, that's what the alignment dowels are for.

 

[Gary Crist]

Do not worry, as people here are willing to help and do not bang each other.

 

[1993Saturn]

Had been having trouble with my brand new heads sending coolant into the cylinders and when I removed and replaced the second time, I got exhaust blowing pressure into the cooling system. When I pulled them the second time, I sent them to a NAPA machine shop. They were warped and that is probably the way they came straight from Clearwater. cost an extra $70 to get them machined. He told me not to install with manifolds attached. So I did. Now I have a failed ICM and have to get it replaced, so I won't know until tomorrow if my 3rd install is good.