Wow You know your stuff , Cheers man for da info. It really helped.

Im in a situation where i cracked my b18c2 head so just thinkning about a type r head, I have a skunk intake manifold and a mugen equipped aftermarket ecu That i have not yet installed.

How i cracked my head its those 4 outer bolt that secure the rocket cover and i tightened i bolt abit too much then Bangg.
And yer now the rocket cover is held on by 3 bolts.

What would you do in my situation??

The car still runs fine Doesnt leak due to replacing the rocket cover gasket.
Just checking if its worth it spending $500 on a new head.

Cheers brother