Austin Seven Heads
Ricardo - early design
Ricardo, designed by Sir Harry Ricardo.
The early head shown here was manufactured by Thompson and Taylor at Brooklands in the 1920s.
Features a deep combustion area around the spark plugs. Spark plugs are located over the inlet valves.
Reference The Austin Seven Clubs Association Magazine, publication No. 1989A, pages 14-20. Article by Robin Boyce and Andrew Lowe