quote:Originally posted by accobra:
.. the heads have the little 4 up in the corner near the valve cover ...
US manufactured heads had the numbers 2 or 4 cast in the upper corners, the Aussie heads have no numbers. What you have there are a set of US manufactured large port 4V heads. That may be a 4V motor deTomaso acquired from Australia and installed oem in your Pantera, a previous owner may have swapped motors, or that may be a set of 4V heads installed by a previous owner on the oem short block. There are basically 2 cast iron intake manifolds for the 4V heads, a square bore manifold designed for the Autolite 4300A, 630 cfm carb; or a spread bore manifold designed for the Autolite 4300D 750 cfm carb. These intakes are good performing intakes, they just weigh about 50 pounds. The holes in the square bore version can be opened up to work with larger Holley carburetors.
your friend on the DTBB