The four-valve version of the 3-liter engine as used in the 300 SL-24 was a new development based on the M 103. The 4-valve cylinder head and the camshaft adjustment were new. Combined with higher compression and electronic ignition with anti-knock control the 4-valve engine (M 104) had a power output 40 hp higher than that of the M 103. This meant that the 300 SL-24 had a significantly better performance than the 300 SL with almost identical fuel consumption, however, the price of the car was almost DM 10,000 higher.

#r129 #300sl24 #slclass #oldbenz
source: Mercedes-Benz Classic ALL TIME STARS

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