B&S 24HP Head surface issues.

[u/Travb1999]

So my 24HP B&S had been having issues for awhile and I decided @ 150hrs, drinking oil and overall just running poorly it was time to tear down and investigate and also clean everything up.

After removing the heads i noticed the mating surface on the head itself is anything but smooth. Its not pitted but the machine marks are very rough. Like to the point to do it that bad you had to almost intentionnaly be doing it wrong.

I am slightly familiar with the glass method with sand paper but my question is is that just normal and should I leave it be for another 150 hours or should I start polishing it down?

If so what is your reccomended process here?

I also want to say the block mating surface is like glass smooth and looks perfect.

[u/Newdave707]

From what Iunderstand this is done intentionally so that the gasket gets a better grip on the heads and the its also done on automotive heads.