look in main.cpp file of the source
maybe a quarter the way down. look for the header
//////////////////////////////////////////////////////////////////////////////
//
// CBlock and CBlockIndex
//
maybe around line 1000ish
int64 nSubsidy = 12 * COIN;
if (nHeight > 83334)
{
nSubsidy = 0.6 * COIN;
return nSubsidy + nFees;
}
return nSubsidy + nFees;
this coins is always POW but it was init64 nsubsidy 12 coins (initial subsidy 12 coins per block) when the heights under 83334
after that .6 coins per block.
edit* if you want us to find it for you in a source post a link to github and someone can most likely look quickly and paste back the answer and location in the source.