Found..66 IP coded 4 bolt 427..

[RichSchmidt]

Well since the engine is in my race car running right now and I have no plans on pulling it out for at least another year or two,it really isnt a for sale deal.I was just stating that very early 427 blocks are almost always worth something to the right person,so rather then just throw it in your car because you couldn't find any other block to use is a good way to loose out on a potential profit,and you wont get the warm fuzzy feeling of reuniting a rare car with a rare engine.