The 2GR was developed in 2005 as a replacement for the 3MZ-FE. A 60° V6 1GR aluminium cylinder block with cast iron liners was added with a crankshaft with a 83 mm piston stroke. The 2GR cylinder block itself is a bit shorter than that of the 1GR. They also applied light T-shaped pistons and forged connecting rods.
The 2GR was provided with a timing chain with its lifespan of about 120,000 miles (200,000 km) or longer. Besides, the motor if fitted with hydraulic lifters, so you won’t have to adjust the valves. The featured of the 2GR-FE stock camshafts are as follows: duration 235/235 deg, lift 10/10 mm. In the 2GR-FE, there is a Dual-VVTi variable valve timing system bolted on the inlet and outlet camshafts. Also, a kind of ACIS variable length intake manifold is used. Generally speaking, the 2GR motor possesses a good performance.
The GR series of engines also includes 1GR, 3GR, 4GR, 5GR and 6GR.
Apart from a basic modification, other modifications having their own particularities have been produced.
The engine is installed in Toyota Avalon
Toyota Mark X
Toyota Mark X Zio
Lotus Exige S