do i need to find a windsor block to put my windsor p.i. heads on, or can i use them on a romeo block. i have a windsor thats complete, and i bought a freshened romeo short block, i got it at a good price and its been setting now for about 3 months really had no intensions of using it, until i bought the p.i. windsor motor, (it has a spun rod bearing at only 36k on the clock). also is it true i need new head bolts or can i use the old ones