ndrico
Member
I bought a 1971 2800 cs about 3 years ago. The engine block cracked and now am looking for a new engine. What type of engine can I put in the car? Is there another type of engine that will fit? Thanks for any help.
need new engine
- Thread starter ndrico
- Start date
The engine in your car is from BMW's engine family M30. Any M30 engine from the late 60's to the mid 80's is a virtual drop-in if you use your original carburetors and possibly other peripherals from your original engine. You can find M30's in 2.8, 3.0, 3.3, and 3.5 liter displacements. All the blocks and heads are interchangeable and close to identical.
You can find M30 engines in other e9's, the e3/Bavaria, e12 original 5 series, e24 6 series, e23 7 series, and e28 second generation 5 series. The bottom end of the engines is quite durable, so a used engine with under 150k miles can often be installed with no significant work. It's wise to replace front and rear crank seals, and if they look brittle or worn, the timing chain guides.
You can find M30 engines in other e9's, the e3/Bavaria, e12 original 5 series, e24 6 series, e23 7 series, and e28 second generation 5 series. The bottom end of the engines is quite durable, so a used engine with under 150k miles can often be installed with no significant work. It's wise to replace front and rear crank seals, and if they look brittle or worn, the timing chain guides.
ndrico
Member
I have no idea how the block cracked. I was driving it normal, and after about a year I was getting water in with the oil/gas and eventually the engine started smoking and I brought it to my mechanic who took the block out and showed me these small cracks in between the pistons (I think they are pistons).