When we picked up the Spider, the head with SPICA manifold on it was not on the block. After we were back in Tulsa, I called Mike Besic to inquire as to why it was left off.
He said his records haven't been computerized, but he remembered rebuilding the engine and transmission and who the PO was that had the work done, but, he couldn't remember why the head had been left off. Not bad considering that the work was done 14 years earlier.
I asked the BBers about block (stamped 00112.0621) and the head (stamped 105.00-01.500.00). Greig Smith replied:
"Looks like the motor dates as a late '63, it's the correct series for your car & after '60, Alfa never recorded what motor went into what chassis via a visible data plate (The Archives do have this info, but it's a FIAT Company Policy not to divulge it).
Fusi shows a mistake in the '63 to '64 engine numbers on the Giulia's, but extrapolating from '62 to '64 shows this engine was late '63, given that your car is early '64, it could have been pulled from a dark corner as things were a little chaotic at Portello in those days, given that the new factory at Arese was producing 105 Ti's, the Ti Supers & tooling up for the 105 Sprint GT, while the old works at Portello was being wound down.
Head is correct, many of the late 101 Giulia's ran 105 castings as there was a degree of overlap in production and this gets more so through '65 & '66."
Oklahoma SNO Alfa Chapter Director
'64/66 Giulia Spider finally back in the garage and painted
'75 Olandase Blu Alfetta Sedan 2.0 & '88 Red Milano Verde; both long gone and dearly missed