yeah the bore is like in between standard and oversized. I guess I have slightly oversized the bore and now I am in between piston sizes.The oversized piston ring has a gap of .o17 when installed in the piston. What does that tell you. Should i just pull the block and get new pistons and bore it out. I do not like the thought of putting one oversized piston in with 3 standard ones. What does everyone think