EZ36D Subaru Engine
The EZ36D engine had a diecast aluminium cylinder block with 92.0 mm bores and a 91.0 mm stroke for a capacity of 3630 cc. For the EZ36D, sintered iron pieces within cylinder block controlled thermal expansion of journal clearances during warmup; according to Subaru, the iron pieces also relieved shocks to the crankshaft journals and reduced overall vibrations.
EJ204 Subaru Engine
The Subaru EJ204 was a 2.0litre horizontallyopposed (or 'boxer') fourcylinder petrol engine with double overhead camshafts. The naturally aspirated E204 engine was initially introduced in the 2005 Subaru GD/GG Impreza and 2006 Subaru BL/BP Liberty as a more powerful alternative to the single overhead cam EJ202 engine, but effectively replaced the EJ202 when the GE/GH Impreza was released in