The "big six" BMW M30 is an inline-6 cylinder engnine built by BMW and used in many of its cars, such as the BMW 535i. BMW's 3.5L straight six cylinder motors had the longest production run of any BMW engine, dating back to the 1968 E3 and E9 cars. The last use of the block was the 1993 E34 535i. Displacement ranges from 2.5 to 3.5 liters with a 100 mm bore spacing.
The 3.5L engine is 'bulletproof' and a true workhorse. Instead of the more common timing belt, the M30 had a timing chain designed to last the life of the engine. With regular oil changes and maintenance they have routinely lasted 250,000 miles or more.
2.8 L (2788 cc) Applications:
3.0 L (2986 cc) Applications:
3.2 L (3210 cc) Applications:
3.5 L (3453 cc) Applications:
3.5 L (3453 cc) DOHC Applications:
M30B30
Introduced in 1986 with the E32, the 3.0 L M30B30 produced 188 hp. The engine continued in production until 1994.
Applications:
M30B34
3.4 L
Applications:
M30B35
- 3.5 liter (3430cc) SOHC inline-6 cylinder
- 9.0:1 compression ratio
- 208 hp. @ 5700rpm
- 225 lb./ft. torque @ 4000rpm
- 89 Octane fuel or better recommended
Applications:
See also
