ALOT but they are worth it.

$1350 + a core. they come bare, no rockers, no springs, no retainers, no valves, no LMAs. so ideally you buy a stock head, and rob everything out of it and send them the bare one in as your core.

if you sent your head to RLZ, or DFE, or anyone else thats reputable at porting heads, then you would pay more so its not that bad of a deal