Grind Exhaust Manifold Flat?

[toyotav84x4]

I have a leak from at least one manifold port (to head). The manifold must be warped from preownership head destruction.
My spanking new toyota head shows up the warp and makes a squealing sound as the gasket vibrates at high frequency as gases jet out.

So is it alright to grind the face of the manifold down to make it straight?

[The Lang-Shankit Scunner]

sounds ok to me, but isnt it more likely a case of needing a decent gasket instead? Dont go nuts grinding and spoil it.

[toyotav84x4]

The manifold gasket is standard Toyota so surely the right thing to use?
Can you suggest something else in there?

I know what you mean with the grinding. I'm thinking put a straight level on it, grind and then sand smooth bit by bit. I remember tightening it up to the head before and it pulled it into line mostly but I don't want unecessary forces on the studs.

[surfenstein]

double up on the gasket on the warped port.thats the easiest way.and use a bit of high temp sealant.

[toyotav84x4]

Yeah that might be worth a try - double gaskets!

[plumb bob]

If that don't work, I'd get it proffesionally machined, or get a s/h manifold.