M6x

The BMW M6x range of engines are a line of V8 DOHC piston engines which were produced from 1992 to 2005. The first version was the M60 and was this first V8 engine BMW had produced for 25 years, this was then replaced by the M62. These engines were used in various BMW models (E31, E32, E34, E38 & E39) and were also sold to other manufacturers to use in their cars.

The M60 was in development from as early as 1984, one of the the main aims of the development process was to reduce the size and weight weight of the engine and CAD was used extensively to aid this.

Versions

All M6x engines consisted of aluminium cylinder blocks and cylinder heads and then plastic inlet manifolds. They were also DOHC with four valves per cylinder.

M60

The M60 engine was driven by a dual-row timing chain. Valves had hydraulic lash adjustment to reduce maintenance, and the camshaft chain drive was self-adjusting. There was no distributor, each cylinder having its own ignition coil. Fuel injection and ignition are controlled by the Bosch Motronic 3.3 system. There was a 3.0l and a 4.0l version of this engine. A final thing to note, these engines used the famous Nikasil cylinder bore linings.

Engine	Displacement	Power	Torque	Redline	Year
M60B30	3.0 L (2,997 cc (183 cu in))	160 kW (218 PS; 215 hp) @ 5800	290 N·m (214 lb·ft)) @ 4500	6500	1992
M60B40	4.0 L (3,982 cc (243 cu in))	210 kW (286 PS; 282 hp) @ 5800	400 N·m (295 lb·ft)) @ 4500	6500	1992

M62

The M62 was largely the same as the M60 with just a few revisions, the M62 was added to the BMW range in 1996. The timing chain was now a single-row timing chain, Alusil cylinder liners and later Vanos was added in 1998.

There was 4 different capacities of the M62 offered, two of which were later available with Vanos, the Vanos engines were given the designation of M62TU.

Models

Engine	Code	Displacement	Power	Torque	Redline	Year
M62B35	358S1	3,498 cc (213 cu in)	173 kW (232 hp) @ 5700	320 N·m (236 lb·ft) @ 3300	6200	1996
M62TUB35	358S2		175 kW (235 hp) @ 5800	345 N·m (254 lb·ft) @ 3800		1998
			180 kW (241 hp) @ 5800	345 N·m (254 lb·ft) @ 3800		1998
M62B44	448S1	4,398 cc (268 cu in)	210 kW (282 hp) @ 5700	420 N·m (310 lb·ft) @ 3900	6100	1996
M62TUB44	448S2		210 kW (282 hp) @ 5400	440 N·m (325 lb·ft) @ 3600		1998
M62B46	468S1	4,619 cc (282 cu in)	255 kW (342 hp) @ 5700	480 N·m (354 lb·ft) @ 3700	6500	2001
S62B50	508S1	4,941 cc (302 cu in)	294 kW (394 hp) @ 6600	500 N·m (369 lb·ft) @ 3800	7000	1998