So has anyone heard of anyone using 5SFE pistons into a 1UZFE block. I have been looking around and found that the 5SFE piston is really similar to the 1uzfe piston. The 5SFE is 87.5mm bore with a 9.5:1 compression, .866 pin size, and is a dished piston with 4 valve reliefs. Also it is rumored...