@ Starlight: I'd happily humor anyone looking to buy this engine, but the shipping cost to you would be very prohibitive.
In addition to my date & numbers correct engine for my car, I do have a 1972(?) 400 shortblock - so I have no need to trade.
@oph: when I bought the engine, I freshened it up, and put it in a 1973 Firebird, I see no reason why I might have issues putting it in my car - and from a performance standpoint, this later block offers zero edge over an earlier block;
I have heard of block mount boss differences between early and later blocks, but I have personally never dealt with any castings newer than this one - but admitedly, it has been many years since I installed this one, so if I had to do anything to make it work, I have long since forgotten.
I'm a younger guy (in the grand scheme of this hobby), so saving a couple bucks by not having to machine/build another shortblock is a real perk for me.
I was just wondering if at stock-ish power levels (I'm not going to be going as far as to require anything more than pump gas), if this casting might be a cause for concern.
If my memory serves me correct, the 1977-L78 block was a lighter casting than the 1977-W72 block.
I really appreciate the input guys! - keep it coming