Numbers should look like this for a euro block....
Hi, What you show is not a 548 carburetor block, as it is stamped 00551. 00551 should be for a 1750 FI block. See attached picture of a 548 block.
1750 blocks were also stamped on the engine exhaust side bell house flange.
Ken Geiger, Toronto
1965 GTA, RHD, Stradale
ex- 1965 GTA, RHD, Corsa, Trans/Am 66-72
1964 Sprint GT, B-Sedan in 70's
1970 Giulia Super (CDN Spec)
1976 1600 GTj (Italian Spec)
1966 Harley Sprint (Aermacchi) 250
2000 Catalina 320, Hull #765 Northern Dream
2001 BMW Z3 3.0i