Retightening lower intake bolts?

[spoulson]

I just fixed a manifold leak caused by lower intake bolts working loose. I put on a new Felpro 1250 gasket and the car's running great now.

But, I thought to check the bolt torque after a week of driving and found that some bolts were nice and tight and others could be turned some more. I popped off the upper intake and retorqued them all by hand. Hopefully they stay put.

Is this unusual? Could something not be right with the gasket to cause this? Intake is Trick Flow and I used antiseize on the bolts to avoid galling, if it matters.

 

[stykthyn]

totally normal.

 

[90lxcoupe]

Its normal, id drive it another 1000 miles then check the tq on them

 

[spoulson]

Thanks.

 

[Tanus]

I always re-torque um after bringing the engine to full temp then all the way cold. then usually again after like 500 miles. without doing this the gaskets with start leaking prematurely.