M50 2.9 Headgasket help

[Psymon69]

Good day gents

I have an M50b25NV which im boring to 86mm (c20xe pistons) and using M52b28 crank. This will give me 2.9, whooo. Now my question is can I maybe use a S50b3x headgasket? This in my mind would be cheaper than having one made up.

From pics they look prettymuch the same as far as I can make out.

Any ideas would be greatly appreciated

[Psymon69]

Bump.

Got my block and stuff back from the engineers. The stock gasket is sooo close to fitting but there is just a slight ridge here and there when you run your fingers up the bore past the gasket.

Should I try this? Can someone maybe help me to work out compression on the motor as is?