Join Date: Jul 2006
Location: Northfield, Illinois
No, the head arrived marked that way on an Alfa built street GTA engine in a Stradale GTA that Ausca bought to be made into a race car. Early on, there were three Alfa GTA engines. One could buy a Stradale GTA, a Corsa GTA, or a Corsa GTA engine only from Alfa. I do not know when Autodelta began assembly and sales of race components to Ausca, but they did have Ausca do GTA engine development work, in exchange for some very interesting components while I was there.
Condotti translated to "conducted" as in "conduit". The raw sand cast port runner was profiled and matched to a manifold. The head carries the initials of the finisher in Italy. Back in time (1965) I saw a few like this at Ausca. None were sleeved unless Ron Neal sleeved them. The earliest Ausca sleeves extended as long tubes fitted to the manifold, extending to a section that slid into the head port. Early versions Ron N made up were tapered tubes, and were held in place in the manifold with allen grub screws. Tech inspectors made us change these to epoxy secured tubes, in the manifold, and another section in the head. The manifold had to be removeable as originally built, nothing extending into the head port.
Eventually Ausca ran dry intake manifolds with raised tubed runners, still nothing extending into the head, with coolant feed through head casting plugs. Lots of flow bench, dyno time, and cam development was turned over from Ausca to Autodelta.
Much of the 1971 CAS data was Ausca development work. Pages from the 71 CAS show some GTA port modification and the three basic head port sizes.
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Illinois SNO Alfa Chapter Director
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