This a picture of the last blown street Hemi motor I made before moving to Oregon. It is a stock late model 4.180 bore size unfinished replacement block that was thin so we bored it to standard 4.25, the cranksahft is a blown fuel 4.375 stroke fully counter weighted for the blower application, it is a little overkill for this motor the motor made 927 hp on pump gas at 7300 rpm with 7 lbs of boost One of theses days I hope I learn how to make some seriuos power from the 426 style Hemiroid motors Only in my dreams, huh