Hispano Suiza - Hispano Suiza I6
The smaller six cylinder 3,750cc Hispano Suiza I6 with a 85mmx110mm engine (compared to the H6 with 100x140) was listed by the factory from 1925 and built at the Hispano Suiza Barcelona factory, which fell into the 20CV tax category. It was also easier to work on as the engine was designed with a detachable cylinder head. Based on the H6 chassis with lower gear ratios and a slightly shorter chassis it was a less costly model. Production continued to 1933.
Tyre size for the Hispano Suiza I6 was originally 820x120, and at some stage that we cant determine the I6 was using a 21" wheel, probably with size 525 or more likely 600x21, all sizes of which Blockley produces - see details below:
