Prices seem to be climbing for these items, so if you are seriously in need of a correct engine, you might want to check it out.
Engine number: 1315.32881 which looks to me to be a 1959 Sprint Veloce engine by my register.
“Ar1315 for engine 32281 giulietta spider sprint and fast for the years 58/59 complete with Marelli distributor and intake manifold. To regenerate missing the exhaust and intake valves. 7800 PRICE NOT NEGOTIABLE” (click to link) ENGINE FOR SALE