Shifterati

Toyota UR engine

This page is a draft. It has not been approved yet, so read it with care.

Toyota's aluminium V8s from 2006, the 4.6L 1UR-FE and the 5.7L 3UR-FE, in the Tundra, the Sequoia and the Land Cruiser.

The story

History: facts, each with its source

The UR V8 family was introduced in 2006 as the UZ V8s it replaced were phased out. Wikipedia lists the 5.7L 3UR-FE in the Tundra, the Sequoia and the Land Cruiser, and the 4.6L 1UR-FE in the Tundra from 2010 to 2019 and the Sequoia from 2010 to 2012.1

80/20 Automotive says the 5.7 debuted in 2007 in the Tundra, the Sequoia, the Land Cruiser and the Lexus LX 570. TRD sold a supercharger kit for it that raised output to 504 hp.2,1

  • Block and head: Die-cast aluminium block, aluminium heads1
  • Valvetrain: Twin overhead cams per bank driven by chains, four valves per cylinder, timing varied on both cams1

Sources

  1. Wikipedia (UR engine)
  2. 80/20 Automotive (5.7 V8 problems)