[blykins]

That's definitely the casting number...and that's definitely the bore size. Unfortunately, I only bought the block...so I don't know what guts it had in it. It is a 4.050" bore with a little cylinder ridge in the cylinders...

I have a book about big block Ford parts interchangability...and it says that truck blocks were the only ones with 4 bolt engine mounts...whether or not that's correct, I have no idea...but I have 4-bolt engine mounts...plus a pipe plug (drain plug?) on each side of the block by the center freeze plug.

The block has some surface rust on it, so I can't see 100% of everything...I do know that it has a big X in the lifter valley, and a 17/64 drill bit fits in the water jackets. :-) I plan to have it media blasted here soon.

I did try to check in the center freeze plugs for a 428, but like I said, it's a little dirty in there.

Bomelia, what is the third web on the crank saddles you're speaking of? I'll try to check that out when I get a chance.