I'm marrying this down so thank you for all your help it's been great but my question is now I ran into an issue I have a 93 4.3 with the balance shaft it is considered the heavy version I have a motor that by the serial number is 93 through 97 but it has the light balance shaft which would include the light Pistons Etc I have read that you cannot put a light balance shaft into a block that had the heavy because of the way the bearing was in shim on the rear of the shaft but can I put my complete rotating assembly with my heavy into that other block that had the light or do you have any suggestions thank you
