Porting / polishing cylinder head

[5tox]

Ive done a bit of reading and decided to smooth out the rough casting marks in my inlet ports, ill match the inlet ports to the throttle bodies when i get them.

Do you reckon its worth smoothing out the sharp edges around the valve seats?
Its easy to do and i reckon id have it done in an hour.

Is it worth enlarging the exhsust ports to match the gasket?

Mirror finished combustion chamber or standard / rough?

I have my good head sat on the table so if theres any benefit from the above i may as well do it now

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[5tox]

Practicing on the scrap head but you get the idea

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[Graham]

smoothing edges on valve seats wont do any harm, no point polishing chambers, in use they coke up anyway! the step in the exhaust can be a good thing especially on a road engine.

its not a pinto! just a little too much grinding an easily make a duratec worse not better

[5tox]

I reckon ill perhaps just smooth the sharp edges around the valves and leave it alone then 😁

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