BRM had experimented with a four-valve-per-cylinder version of the engine, but this was abandoned in favour of the tried and trusted, oversquare (68.5 x 50.8 mm), fuel-injected, two-valve, quad-cam configuration.
This car was developed by the Nissan Tsurumi vehicle development team, but the C30 Laurel was fitted with the Prince four-cylinder SOHC engine, the G18.
Unveiled in 1966, it was one of the first production overhead camshaft designs to use a rubber toothed belt to drive the camshaft from the crankshaft (an honor shared with the 1966 Pontiac OHC Six, and also the Fiat DOHC engine of 1966), a method developed in 1956 by Bill Devin.
The TT bike had a Unit construction powerplant, with a bevel-driven overhead camshaft.
The TN360 uses an air-cooled two-cylinder 354 cc engine with a single overhead camshaft,and was adapted from the Honda CB450 motorcycle.