Is your 383 internally or externally balanced? If internal, and of 2 piece rear seal variety, your old flywheel(or flexplate) and starter should work. If externally balanced, you'll need a flywheel/flexplate intended for externally balanced motor.Originally posted by jigga99:
i just got my turn key 383 in today 420hp 455troq,
now for in stall i have a orignal 307 in there now will the starter fit off it? and fan and motor mounts what do i need to do the job right?