Austin Seven Heads
Early Chummy Head
Standard
Chummy Head (and early Ruby Head)
Late
Ruby Head (also known as the '37 Head)
Grasshopper
Head
Nippy and Unsupercharged Ulster
Alta
- early design
Alta
- late design
Cambridge
Engineering - early design
Cambridge
Engineering - late design
Dante
Lee Motor Racing (LRM)
Ricardo
- early design
Ricardo
- late design
Silvertop
Speedex
MKII Speedex
Supaloy
Watmough
Coldwell
Ludgate
Cushioned Power
Lester Reeder
Elesco
Reliant