Robert,
I have both big and small TF bolts that have SBC V8's, they all bolt in with the same hardware.
Since your truck had a V8 at one time I'm betting the front cross member still has the lower motor mount brackets still bolted or riveted in place. The motor should already have the mounting bracket bolt holes drilled and tapped on either side of the timing cover. This entire front mount kit is available from all of the vendors.
The bellhousing needs to be from a truck, it is different than the cars. The truck uses one large anchor bolt on each side while the cars use two small bolts. The transmission input shaft hole is also larger on the trucks. Let me know if you need the hole measurement or pictures.
The flywheel needs to have the correct ring gear to match the starter motor. I believe mine all have the 154 tooth ring gear and the flange mounted starter motor. I got a cast iron flywheel and 11" clutch kit from Auto Zone and couple weeks ago.
To sum it up, if you use the original front and bellhousing motor mounts everything will line right up and bolt right in.
Good luck!
Mike B
