Two realistic ways to reduce the side to side rod play. a. Weld crank up, on sides (1mm) , and regrind. Add a phosphor bronze spacer between the two rods.
Best rods and pistons to use on the 1gz-fe are for the 7afe Toyota engine. The rods are only 1.384mm shorter, making them ideal for turbo charging. The width of the big end are a bit narrower. 21.79mm vs 23.749mm. The big end are the same diameter.