M10 - Straight 4 cylinder SOHC 8V. 1966-1987. 83kg 180lbs Used in 1502, 1600-2, E21 316/318i/320-4, E30 316, 2002tii and 2002 turbo 1.5 (75bhp), 1.6 (85bhp), 1.8 (90-98bhp), 2.0 (100bhp), 2.0i (125bhp), 2.0tii (130bhp), 2.0turbo (170bhp) M20 - Straight 6 cylinder SOHC 12V. Baby Six. 1977-1992. 117kg 258lbs Used in E21 320, E21 320i/6, E28, E30, E34, E21/30 323i, E30 325e and E28 528e 2.0i (129bhp), 2.3i (143bhp), 2.5i (170bhp), 2.7e (125bhp) M30 - Straight 6 cylinder SOHC 12V. Big Six. 1973-1993. 143kg 315lbs Used in E12 525/528, E28 525i, E23 725i, 2800CS, E28 528i, E23 728i, 3.0CS/i/L, 3.0Si, E12 530i, E23 730i, 3.3Li, 633, 732i, 733i, 535i, 635i, 735i, E12 M535 2.5i (150bhp), 2.8i (184bhp), 3.0 (185-208bhp), 3.3 (200-206bhp), 3.5 (218bhp) M102 - Straight 6 cylinder SOHC 12V Turbo. Big Six Turbo. 1984-1986. 145kg 320lbs. Used only in the E23 745i 3.2L or 3.4L Turbo (252bhp) M40 - Straight 4 cylinder SOHC 8V. Replaced the M10. 1987-1993. 81kg 178lbs Used in post 87 E30 316i/318i, E34 518i, Pre 93 E36 316i 1.6 (102bhp), 1.8 (122bhp) M42 - Straight 4 cylinder DOHC 16V. 1989-1996. 100kg 220lbs Used in E30 and E36 318is, Z3 1.8 (138-142bhp) M43 - Straight 4 SOHC 8V. 1993-1998. 83kg 183lbs Used in post-93 E36 316i/318i, E34/39 518i. 1.6 (102bhp), 1.8 (115bhp) M43TU - Straight 4 SOHC 8V. 1998 on. 83kg 183lbs Used in E46 318i 1.9 (118bhp) M44 - Straight 4 DOHC 16V. 1996 on. 102kg 225lbs Used in E36 318iS, Z3 1.9 (142-150bhp) M50/M50TU - Straight 6 DOHC 24V/Straight 6 DOHC 24V with Single VANOS. 1989-1998. 136kg 299lbs Used in E36 320i/325i, E34/39 520i/525i, Variation of this was used in the Early US E36 M3 2.0 (150bhp), 2.5 (192bhp), 3.0 (240bhp) Sometimes referred to as S50US. Engine shares more common parts with M50 than Euro S50, but is a motorsport engine. M52/M52TU - Straight 6 DOHC 24V with Single VANOS/Straight 6 DOHC 24V with Double VANOS. 1996-1999. Iron Block in US, Alloy Block in Europe. 118kg 260lbs (alloy) 140kg 308lbs Used in E39 520i/523i/528i, E36 323i/328i, E38 728i, Variation of this was used in late US E36 M3. 2.0 (150bhp), 2.5 (170bhp), 2.8 (193bhp), 3.2 (240bhp) Sometimes referred to as S52US. Engine shares more common parts with M52 than Euro S50, but is a motorsport engine. M54 - Straight 6 DOHC 24V with Dual VANOS. 2000-present. 126kg 277lbs Used in late model Z3, all E39 and E46 six cylinder models 2.0 (150bhp), 2.2 (170bhp), 2.5 (184-192bhp), 2.8 (193bhp), 3.0 (231bhp) M56 - Straight 6 DOHC 24V Dual VANOS with ULEV. 2002-present. 127kg 280lbs Used in some E39 and E46 six cylinder models 2.5 (184bhp) M60 - V8 DOHC 32V. 1992-1996. 146kg 321lbs Engine blocks were made of Nikasil (Silicone Injected Nickel) which were prone to failure over time. Many have been replaced with the newer Alusil (Silicone injected Aluminum) engines/ Used in E34 530i, E32 730i, 740i, 840i 3.0 (218bhp), 4.0 (286bhp) M62/M62TU - V8 DOHC 32V/V8 DOHC 32V Single VANOS. 1996-present. Alusil Engine block. Pre 98 engines were non-VANOS. 140kg 308lbs Used in E38 730i/740i, E39 540i, X5 and 840i 3.5 (235bhp), 4.4L (286bhp), 4.6 (340bhp) M70 - V12 SOHC 24V. 1988-1994. 155kg 341lbs Used in E32 750il, 850i 5.0 (300bhp) M73 - V12 SOHC 24V Single VANOS. 1995-2001. Pre 98 engines were non-VANOS. 150kg 330lbs 5.4L (326bhp)
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