Need to know what type of engine I have. Removed from a '72 Ranchero. Fresh rebuild, bored .30 over. Block number D2AE-CA. Head number D5AE-A2A. In the corner of the head there is an "11" cast. Toward the middle its cast "204", and is stamped "F15" below that. Intake number D1AE-8425-DA. From what I can gather, it has a 351CJ block, 351C intake manifold, and a set of 351M/400 heads. I took it apart and everything's fresh. No mileage to speak of, so I'm going to replaced the gaskets, mount it to a c6 auto and install it in a 1971 Mustang
. Any idea what kind of horsepower/torque this thing might have? Any idea why someone would install 351M heads on a CJ block (if I'm even correct about the cast numbers)? Haven't heard anything positive about a post '75 Ford head, I assume it's what the guy had lying around to finish the engine with. Any insight would be greatly appreciated!!!