Slant 6 stroker kit?

THe 225 CAN be stroked by offset grinding the crank, buy my GOD it already has a 4 1/8" stroke. It doesn't need help "THERE". It needs a better cylinder head, because the 225 head was never redesigned. They simply slapped the 170 head on it and kept on truckin. The only head redesign was done about 68 I think all across the board.