[Tom Kirkham]

A Ford 429 will simply not fit in a Cobra without tremendous modifications to the car.

CSX3358 was shipped to Shelby in the last shipment of cars that arrived in the United States. (It is owned by a good friend of mine in San Francisco.) I have spent a lot of time with CSX 3358. It has a 427 Tunnel Port in it now—it originally had a 427 MR engine in it. The invoice date from AC to SAI was dated 14 Dec 1966.

To put a 429 in an original Cobra would have required modifications to the foot boxes, motor mounts, exhaust system, throttle linkage, suspension calibrations (due to the increased weight) etc. It was never done by Shelby, or AC. The first production vehicles, I believe, with a 429 in them were made in 1968.