I am Planning on putting a 396 in my 67 camaro it has a 327 4 speed in it now will it be necessary to change the transmission cross member & Z bar when I put the 396 in. I am planning on changing the frame mounts to the 396 style

As far as I'm aware, the trans. crossmember will work. You'll have to change the Z bar as the BB is different.
Rick

Johnny,

I have a 67 with a big block and a 4 speed. When I got the car it had small block engine mounts. When I changed to the big block engine mounts it moved the engine about 1" to the passenger side. I had to get a new Z bar and cut some new holes in my crossmember to make it work. There is a special crossmember for BB and 4 speed, but you can still use the one you have and just cut a new slot and lengthen the holes.

I put a big block in a 69 before using the small block motor mounts, crossmember, and zbar. No fitment problems even with headers. Ok one small dent in the collector for clearance for the rod going to the clutch fork. I think if you use the small block mounts you will be all set as far as the zbar. In 69 the big block mounts raise the drivers side slightly and maybe over which makes the big block zbar required. Probably the same for 67 and 8