3914848 then became part #3912596 - Front Header pipe RH
3934873 then became part #3923573 - Front Header Pipe LH
Packing (donut) - no number listed (2 required)
3890689 - Extension, Exhaust Pipe - (2 required)
3930085 - Rear Exhaust Pipe LH
3930086 - Rear Exhaust Pipe RH
3867096 - U-Bolt, exhaust (2 required)
3922549 - screw and lock washer for Exhaust pipe hanger (4 required)
3930087 - Exhaust pipe Hanger (2 required)
3857547 - Clamp, Exhaust system (2 required)
739398 - Clamp N.S.S. Part of U-bolt (below) Bolt and clamp unit (4 required)
3754883 - U bolt, Exhaust system (4 required) This is just the u-bolt, the above goes with this and is a bracket and 2 nuts
3981951 then became part #743538 - Muffler (tranverse)
3961397 - Tail Pipe (non chrome) RH
3958459 - Tail pipe (non chrome) LH
3974213 - Tail Pipe chrome ext RH
3965627 - Tail Pipe chrome ext LH
3964858 then became part #3955750 - Tail Pipe Hanger RH
3965633 - Tail Pipe Hanger LH
The only thing different for the 396 vs small block was the Exhaust pipe extension and the header pipes.
Chambered was a whole different ballgame
