I've been reading through the "how to build a really fast 550" thread but I still have a few questions. If i bore the 550 upper case and move the timing chain tensioner to work with the 650 cylinders and head, along with using the 650's crank, and rods. Could I then bore the 650 cylinders to work with OE 750 pistons and use them while retaining the OE oil ports through the cylinder and head?
