only) M30B35 The M30B35LE is a lower performance, two-valve, SOHC version of the M88/1 engine, also known as the M90. It utilizes the same block as the M88 and maintains the same bore and stroke, but borrows its head from the BMW M30 engine family. Different years of this engine uses both Bosch Motronic and Bosch L-Jetronic engine management systems. Typically identified by a white L painted on the block behind the oil filter housing and coolant water passages on the side of the block. As sold in Europe and most other markets (except North America), this used a compression ratio of 9.3:1, did not have a catalytic converter and produced . Applications: 1979-1981 E12 M535i 1978-1982 E24 635CSi 1978-1982 E23 735i See also BMW S14 - Four-cylinder engine based on the M88 References M88 World Sportscar Championship engines Straight-six engines Gasoline engines by model