Alvis - Alvis 4.3
The 4.3 Alvis was built in the same year as the Speed 25, in 1936. Bored out from 83mm to 92mm bore the engine was almost 4.4 litre (4387cc) so the mystery is why it was not called the Alvis 4.4 litre! This larger capacity engine was put in a modified Speed 25 chassis, to provide a genuine 100 mph car which had independent independent front suspension.
Alvis 4.3 tyre size from the factory was 550x19, and Blockley produce the perfect 550/600x19 tyre the 4.3 Alvis.
