[mback12000]

Thanks for the reply! So is that exhaust? I don't have the heads in front of me, I'm just going from my buddy's pic and his inspection, silly me.

So that Felpro gasket will seal without being supported by the manifold?

Originally Posted by PAUL K

That is not a coolant passage. You can use Fel-pro 1233 gaskets and solve your issue.

[PAUL K]

Originally Posted by mback12000

Thanks for the reply! So is that exhaust? I don't have the heads in front of me, I'm just going from my buddy's pic and his inspection, silly me.

So that Felpro gasket will seal without being supported by the manifold?

Yes the Fel-pro gaskets will seal just fine. The hole isolates heat from the crossover from reaching oil under the valve covers.