Skimming exhaust manifold

[del mar]

Evening,

Following my manifold leaks I am ready to replace them with the ss ones I had made 3 years ago.

All excited and ready to go .......

They are 3 port with turbo outlet, and the cnc cut plate that mates to the engine has warped slightly with the heat. I can't really take them back after all this time.

All three ports are connected, I did wonder if removing the "webbing" between the three ports therefore leaving them as three singles might allow a "release" and make each one easier to bolt down ?

If not I probably need to skim about 1-2mm across the mating surface

I appreciate the cost and hassle of clamping / holding the manifold steady whilst the cutter is passed over it, but does anybody know an engineering shop that would do it ? Preferably in Kent but will post if need be.

The gaskets are layered metal so may take up some slack but I only want to do the job once.

Thanks

Del