98 3500 4x4 engine swap options
 

Hello all I need some help and information. I have a 98 3500 4x4 dually 454 looking at possibly swapping the motor out.. The current motor is getting weak and well to be honest hasnt had the best life used hard. Other than going back with a 454 what options are there for a swap. 6.0 possibly my truck currently has the 4l80e trans
Thanks
Tim