1960 Marvin Panch Valiant stock car

Yes the dyno shows the linkage and how the manifolds bolt together. Also the super rare aircleaner. If I remember this might have been an aluminum motor.

Yeah it could've been an aluminum one, I do recall hearing somewhere that they did do a few 170 cubic inch aluminum blocks before the 225 one went into its brief production. If the massive intake manifold and split exhaust manifolds were not in the way you could tell for sure if it is an aluminum one or not. Who knows this one could even be one of the few aluminum heads that they tried messing around with for a short go.