I have a LS bottom end (91) and Have some GSR P72 Pistons, with rods.. I have been told to use my LS rods and utilize the P72 Pistons... Yes they have to be pressed, But from all the documentation, either the piston needs to be shaved, or the bottom of the rod needs to be shaved and balanced, Has anyone done this before, and have any advice.....

Im also adding a 2000 B16 head, with GSR cams, and retaining the stock B16 stock valve train, also Keeping the car OBD-0, usinga PR3 ecu..

Thanks Cole

Advice of any sort would be greatly apprechieted...

Thanks