RILEY MOTOR CARS -
15/6 Specifications
as Old as the Industry, as modern as the Hour
Brief History
The 15/6 engine was little more than a bored-out 14/6, thus providing more power. This block saw many different bores and strokes, as Riley used it for their Racing Cars, thus needing it to fit several racing categories.The 15/6 was the replacement for the old 14/6, and was introduced in 1935, with more power for a more modern car. It lasted until the recievers arrived in 1938, although it is thought that some surplus blocks were put in cars much later. It was effectively replaced by the 16/4 in 1937, and had been overshadowed by the 8/90 before that. Even so it sold steadily, and was available with a wide range of bodies.