Rabon - if you are going to use this line of evolution, then the LS1 must be derived from Cadillac which sold a 346 CID V-8 engine to the military in 1944....................FOR A TANK!

At least IT had a carburetor!
To take this further, Oakland had a V-8 346 CID in 1916; but they were not the first. I will leave the additional research on this family tree to whomever should be interested.
Oh, and the 347 was a Pontiac block, not a small block.
Jon.
__________________
"Good carburetion is fuelish hot air".
"The most expensive carburetor is the wrong one given to you by your neighbor".
If you truly believe that "one size fits all" try walking a mile in your spouse's shoes!
Owner of The Carburetor Shop, LLC (of Missouri).
Current caretaker of the remains of Stromberg Caburetor, and custodian of the existing Carter and Kingston carburetor drawings.