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Engine information for M20 - 6 cylinder inline SOHC 12v petrol engine.
Successor: M50
Built from: 1976-1994
Displacement range: 1990cm3 - 2693cm3
Number of cylinders/valves: 6cylinders / 12valves
Fuel: petrol
The "Little Six", 12-valve, belt driven, Single OverHead Cam (SOHC), 6 cylinder inline petrol engine:
- M20 - 2.5L SOHC-12v/L6 + eta - BOSCH M1.1/1.3
- M20 - 2.7L SOHC-12v/L6 + eta - BOSCH M1.1/1.3
 M-NumberManagementDisplacementCyl/ValvesArrangementStroke/BoreCompressionWeightFuelPowerTorqueRedline
1 M20 B20   1990cc 6 / 12 inline 6        petrol 92kW / 125HP (@ 5800rpm) 165Nm (@ 4000rpm)  
2 M20 B20 Kat   1990cc 6 / 12 inline 6        petrol 95kW / 129HP (@ 6000rpm) 164Nm (@ 4300rpm)  
3 M20 B20 L-jetronic Bosch L-jetronic 1990cc 6 / 12 inline 6        petrol 92kW / 125HP (@ 5800rpm) 170Nm (@ 4000rpm)  
4 M20 B20 Motronic Motronic 1990cc 6 / 12 inline 6        petrol 95kW / 129HP (@ 6000rpm) 174Nm (@ 4000rpm)  
5 M20 B23   2316cc 6 / 12 inline 6        petrol 102kW / 139HP (@ 5300rpm) 205Nm (@ 4000rpm)  
6 M20 B23   2316cc 6 / 12 inline 6        petrol 110kW / 150HP (@ 6000rpm) 205Nm (@ 4000rpm)  
7 M20 B25   2494cc 6 / 12 inline 6        petrol 126kW / 171HP (@ 5800rpm) 226Nm (@ 4000rpm)  
8 M20 B25 Kat   2494cc 6 / 12 inline 6        petrol 120kW / 163HP (@ 5800rpm) 215Nm (@ 4000rpm)  
9 M20 B25 Kat   2494cc 6 / 12 inline 6        petrol 125kW / 170HP (@ 5800rpm) 222Nm (@ 4300rpm)  
10 M20 B27   2693cc 6 / 12 inline 6        petrol 92kW / 125HP (@ 4250rpm) 240Nm (@ 3250rpm)  
11 M20 B27   2693cc 6 / 12 inline 6        petrol 95kW / 129HP (@ 4250rpm) 240Nm (@ 3250rpm)  
12 M20 B27 Kat   2693cc 6 / 12 inline 6        petrol 90kW / 122HP (@ 4250rpm) 230Nm (@ 3250rpm)  
13 M20 B27 Kat   2693cc 6 / 12 inline 6        petrol 95kW / 129HP (@ 4800rpm) 230Nm (@ 3200rpm)  
1 - M20 B20 (6 / 12 - 1990cc - petrol - 92kW / 125HP (@ 5800rpm) - 165Nm (@ 4000rpm))
BMW 520i e28 Sedan '81-'82   
2 - M20 B20 Kat (6 / 12 - 1990cc - petrol - 95kW / 129HP (@ 6000rpm) - 164Nm (@ 4300rpm))
BMW 520i LCI e28 Sedan '86-'87BMW 520i e34 Sedan '88-'90  
3 - M20 B20 L-jetronic (6 / 12 - 1990cc - petrol - 92kW / 125HP (@ 5800rpm) - 170Nm (@ 4000rpm))
BMW 320/6 e21 '77-'82BMW 320i e30 Sedan '82-'85BMW 520i e28 Sedan '82-'85 
4 - M20 B20 Motronic (6 / 12 - 1990cc - petrol - 95kW / 129HP (@ 6000rpm) - 174Nm (@ 4000rpm))
BMW 320i e30 cabrio '86-'93BMW 320i e30 Sedan '85-'91BMW 320i LCI e30 Touring '87-'91BMW 520i e28 Sedan '85-'87
5 - M20 B23 (6 / 12 - 2316cc - petrol - 102kW / 139HP (@ 5300rpm) - 205Nm (@ 4000rpm))
BMW 323i e21 '77-'82BMW 323i e30 Sedan '82-'84  
6 - M20 B23 (6 / 12 - 2316cc - petrol - 110kW / 150HP (@ 6000rpm) - 205Nm (@ 4000rpm))
BMW 323i e30 Sedan '84-'85   
7 - M20 B25 (6 / 12 - 2494cc - petrol - 126kW / 171HP (@ 5800rpm) - 226Nm (@ 4000rpm))
BMW 325i e30 cabrio '86-'93BMW 325i e30 Sedan '85-'91BMW 325i LCI e30 Touring '87-'92BMW 325ix e30 Sedan '85-'91
BMW 325ix LCI e30 Touring '87-'91
8 - M20 B25 Kat (6 / 12 - 2494cc - petrol - 120kW / 163HP (@ 5800rpm) - 215Nm (@ 4000rpm))
    
9 - M20 B25 Kat (6 / 12 - 2494cc - petrol - 125kW / 170HP (@ 5800rpm) - 222Nm (@ 4300rpm))
BMW 525i e34 Sedan '88-'90BMW Z1 e30 Roadster '88-'91  
10 - M20 B27 (6 / 12 - 2693cc - petrol - 92kW / 125HP (@ 4250rpm) - 240Nm (@ 3250rpm))
BMW 525e e28 Sedan '83-'86   
11 - M20 B27 (6 / 12 - 2693cc - petrol - 95kW / 129HP (@ 4250rpm) - 240Nm (@ 3250rpm))
BMW 325e e30 Sedan '85-'87BMW 525e LCI e28 Sedan '86-'87  
12 - M20 B27 Kat (6 / 12 - 2693cc - petrol - 90kW / 122HP (@ 4250rpm) - 230Nm (@ 3250rpm))
BMW 525e e28 Sedan '85-'86   
13 - M20 B27 Kat (6 / 12 - 2693cc - petrol - 95kW / 129HP (@ 4800rpm) - 230Nm (@ 3200rpm))
BMW 525e LCI e28 Sedan '86-'87   
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