hi baz,
have a 4g67 head from a 4g61na. its the larger style one port size the same as vr4. the cumbustion chambers are 43cc verses 47cc of the vr4 head so slightly higher comp. has one burnt out valve but no other damage. head guy said its all good, never been machined before. after 180 for head and matching intake manifold.
cheers simon.