Head & Transmission Question????????????

[72nismo]

1.I am thinking of having my Ka24de head ported and polished.
So my question is how much does it cost to do that?
An average from mild to wild would be nice.
When that is done do you have to have your Valves replaced?

2. 6 speed 350z or Sr Transmission can it be attached to a KA Block?
If so what is needed to make it work??

Thanks

Can email me the answers if any.
[email protected]