w108,107 Parts Hoarder
Date registered: Jun 2010
Vehicle: slc5.0cab 280sl5sp 280se4.5 500sl92 GONE:280sl79 4xW114/5 3x450sl72-3 280slc4sp81 280s69 73,81SLCs
Location: Philadelphia Area
Mentioned: 27 Post(s)
Quoted: 1573 Post(s)
Mercedes M180/M114 engine block question
Since you have a 1974, the m110 DOHC should fit. I am a huge fan of the m110 engines.
I don't know the m114. I believe the m180 family of engines started with the m180 and ended with the m130, but I don't know the models between.
Personally, I hate carbs, and love the simplicity of k-jet engines. It seems 185 hp k-jet m110 are plentiful, produced from 1976/77 to 1985. If I had a 1973-76 w114/115 with engine issues, I'm pretty confident I would be putting in an m110. I do understand there are many other great engines out there though.
Oh... If taking an engine from a w116 or w126, be sure to watch the oil pan. The r/c107 shared the same subframe as the w114/115 though. So the oil pan from a 107 would be fine.
My dream car is a classic sporty five speed (stick+overdrive) convertible that seats five. If, you want 70's-80's Mercedes tuner wheels, let me know.