Ok I own a '61 ford f-100 uniboby pick up and a 66 mustang coupe My problem is with the unibody,it has a 351 cleveland motor and thats as much as I know. I do not have any books on the cleveland motor so I do not have any information a where to look for what year or what type of heads it has. The prevous owner put this motor in the truck, he also added a edlebrock manifold with a four barrel carb and got rid of the engine id tag.So please tell me where to look on the motor for casting codes and other important info.Also isn't there two types of heads for the cleveland?????I'm trying to find out what heads I've got cause I believe that they're 2-v heads with a four bbl carb set up.

ok theres the numbers i pulled off the upper left hand corner of the head after I took the valve cover off
D1AE-AB,anybody know what they mean??Any information would be greatly appericated

 

The heads will have a 2 or a 4 cast right into them in the upper left hand corner visible with the valve covers still installed.
There will be block numbers cast onto the block down where the starter mounts by the oil pan. If you have a tight fit ro heat shields in place you might need to drop the starter to read it.