BMW M62 is a naturally aspirated V8 petrol engine which was produced from 1995 to 2005. A successor to the BMW M60, the M62 features an aluminium engine block and a single row timing chain. In 1998, a Technical Update included VANOS (variable valve timing) for the intake camshafts. The S62 engine is the BMW M high performance version of the M62, which was released in the E39 M5, BMW Z8, Ascari KZ1, and the Ascari A10. Design Like the BMW M60 engine it replaced, the M62 is a DOHC engine with four valves per cylinder, an aluminum block and aluminum heads. The M62 has fracture-split forged connecting rods, hypereutectic pistons with ferrous coated side skirts. Most of the M62 engines used Alusil for the block material, however some early M62 engines used Nikasil cylinder coating instead. Alusil technology integrates silicon throughout the aluminum cast so that liners or treated bores within this block family are not needed. The M62 uses a Bosch Motronic 5.2 engine control unit (also called "DME") and a hot wire MAF. Technical Update In 1998, a "Technical Update" was applied to the M62, resulting in the M62TU variants. New features include single-VANOS (variable valve timing for the intake camshaft) and electronic throttle control. The engine management was updated to Motronic ME7.2. Versions Figures specified are for European models. M62B35 The M62B35 has a bore of and a stroke of . Applications: 1996–1998 BMW 5 Series (E39) 535i 1996–1998 BMW 7 Series (E38) 735i/735iL M62TUB35 In 1998, the Technical Update was applied, resulting in the M62TUB35. Versions used in the E39 5 Series application have slightly more power than versions used in the E38 7 Series. Applications: 1999–2001 BMW 7 Series (E38) 735i/735iL - 1998–2003 BMW 5 Series (E39) 535i - M62B44 The M62B44 has a bore of and a stroke of . Applications: 1996–1998 BMW 5 Series (E39) 540i 1996–1998 BMW 7 Series (E38) 740i/740iL 1997–1999 BMW 8 Series (E31) 840Ci 286 hp 4.0i M62TUB44 In 1998, the Technical Update was applied, resulting in the M62TUB44. In the United States, power for 2001-2003 540i models was increased to . Applications: 1998–2003 BMW 5 Series (E39) 540i 1999–2001 BMW 7 Series (E38) 740i/740iL 1999–2003 BMW X5 (E53) X5 4.4i 2000–2004 Morgan Aero 8 2002–2005 Range Rover M62TUB46 The M62TUB46 is based on the M62TUB44. Revisions include full metal vanos hubs. 10.5mm lift intake and exhaust camshafts.