Originally Posted by doccamel
Monsterbaby's right...short answer no. 4 bolts do exist but i have only seen 1. Sitting beside it on the shop floor was also a very old Ford factory dual four barel 460 intake. only seen one of those too.
HOWEVER, if you've got the money you can order a 4 bolt 429/460 block
from your Ford dealer through the motorsport catalog. Severe overkill for the street, though.