The Nissan TB straight-six petrol engine was released in 1987 as the TB42. Bore and stroke were . Cubic capacity was displacement). The engine was released with a two-barrel carburettor and a point type distributor. It was used in the Nissan Patrol Y60 and Y61 series.
Variants TB42E and TB42S In 1992 the TB42E emerged with electronic fuel injection and electronic ignition. At this time the TB42 was re-labeled as TB42S. OHV at 4200 rpm at 3200 rpm
Nissan Patrol series Y60 & Nissan Patrol series Y61
TB45E and TB45S In 1997 the TB45 was produced. The cylinder bore was increased to but the stroke remained at . It was available as TB45S (with carburettor and electronic ignition) or TB45E (with electronic fuel injection and electronic ignition). OHV at 4400 rpm at 3600 rpm Nissan Safari & Nissan Patrol GU Y61 OHV at 4400 rpm at 3600 rpm Nissan Civilian & Isuzu Journey series W41
TB48DE In 2001 the TB48 surfaced, with bore x stroke of and double overhead camshaft. Shadowing the mainstream TB42/45 they were released as plain engines. DOHC & Valve Timing Control at 4800 rpm at 3600 rpm Nissan Safari & Nissan Patrol series Y61
See also List of Nissan engines
References
http://www.nissanlk.com/pdf/y61_catalog.pdf