411 REFERENCE · Wiktionary
L-head
Reference material by Wiktionary contributors. This retains its source identity and is not 411 news reporting.
English
thumb|the usual form of side valve, an L-head type
Etymology
Called so because the combustion chamber forms an approximately L-shaped space (in profile).
Noun
en type of Q1928719 with L-shaped chamber The usual type of side valve arrangement.
en side valve<id:Q1928719>
en T-head<id:Q576281>