Howdy all!
Track day at Spa, Belgium resulted in failed harmonic balancer...leading to jumped cam timing...and bent valves.

See it happen:

So thinking the worst and time is of the essence...any recommendations on a replacement head source?
Our combo is quite mild with an Evo 9 turbo, GSC Stage I cams, good intake, and Super Drager exhaust...but the future may hold something greater.

Nonetheless, we'd like to see the valve contact as an opportunity for upgrades. Not being well versed in Mitsubishi performance...we have heard of Cosworth and Buscher. Cosworth CNC heads haven't been available for years, but Buscher still seems to offer a 8/9 head. Not sure if that works on a 5...had the impression they are interchangeable.
We'll probably go with the full port/polish...might be worth 5-20 hp, no?

Welcome any suggestions/options...thanks!

Fun shot!