1969 barracuda big block conversion

You will need;

1. Tranny to go with engine and drive shaft (will need bigger slip yoke for sure and a different length tranny dependant on rear end)
2. Either a big block k-member or adapter motor mounts.
3. bb radiator.
4. bb torsion bars for the front suspension
5. new rear axle. Preferably a 8.75 or Dana 60 but an 8.25 will work if you aren't going to abuse it.
6. The \6 car will likely have 9" drums. A brake upgrade is in order.
7. exhaust.
8. depending on how complete the bb is brackets for mounting accessories.

I went from a \6 3-on-the-tree to a 360 sb 4spd in my 68 Barracuda. I had a 73 Dart v8 doner car that made it much easier.