Alpina B9 motor, CR 5spd Dogleg box and 3.07LSD

JFENG

Well-Known Member
Site Donor
Messages
3,268
Reaction score
1,467
Location
Bahston (Boston)
(tentatively sold)

I have a fully restored Alpina B9 motor FS. The motor came out of a B9 that was a total loss car (flood damage).
It’s essentially a long block (no intake, no exhaust, fuel, ignition). It currently has an E9 oil pump and sump, which would need to be changed out depending on the target car.

I say restored and not rebuilt because Mario at VSR1 did a full makeover on the motor inside and out. It looks like it just came out of an Alpina crate. Everything was kept to Alpina spec (eg we didn’t swap in a Schrick cam or different pistons/valves).

I also have a rebuilt 5spd CR non-OD box (euro e24), with a rebuilt driveshaft and a used 3.07 LSD (early e24, side-loader). The gearbox came via Ron Perry, whose client didn’t finish his hot rod build. The LSD is used. I drained it and the oil was clean with no water. I’ll replace the side seals for the buyer to help insure it’s tight. This unit includes the external oil reservoir as used on the e24’s. You can always stick the plain vented cover on it if you don’t want this for your e9.

Price: Due to the quality of the rebuild, and the fact that the gear box is fresh. I’d like to get $18k for the package (not incl shipping). This is pretty much what I have into these parts.

Separate asking prices (OBO):
Rebuilt Alpina Motor - $14k
Rebuilt CR dogleg 5spd w rebuilt driveshaft for figment into an E9, $3k
Used 3.07 LSD, $1000

This is NOT the best bang for your buck if your goal is cheapest HP get a used B35. It’s for someone who appreciates having a piece of history under the hood. Call Mario for details about the motor (but not the gearbox and diff).

John
508-789-8195

Note: I’m not yet ready to sell my new Stahl headers and Alpina intake system.
 
Last edited:
The timing is unfortunate (for me). I just picked up an LSD, and would have preferred the 3.07 gearing as I already have the CR 5-speed. Assuming you would even sell the pieces independently, I still can't make sense of buying a second (technically a third) diff, just to re-sell one of them to get back to even on my end.

But I think this is a heck of an amazing package, and I know the buyer will be extremely happy with this. :) GLWS - I know it is for a good reason.
 
John,

you might want to note some of the b9 basic specs for those not in the know. if you don't get any takers on the dogleg, you might try letting the e30 m3 SIG know ... they are fans of that tranny.

Stephen, LSD for the e9 are a vanishing breed and the value is probably not going to go down. what is the gear ration in yours?
 
I'm not a buyer, unfortunately, but a pic of that engine would be enjoyable for me and informative for potential customers!
 
Stephen, LSD for the e9 are a vanishing breed and the value is probably not going to go down. what is the gear ration in yours?
Hi Scott. My new limited slip side loader is 3.45 geared. I am not sure if this is accurate, but I thought I read that once you have the LSD unit, gearing can be changed/swapped a little more readily. With that in mind (and if further research proves this), I would likely be interested in changing the gearing to 3.25. But all of this is a long way off, as I have a lot of work to do on the car before I am too worried about which rear end gears I'm spinning. :)
 
I don't doubt its value but is this what Alpina engines are going for? If so I need to readdress my agreed value with my insurers. I bought the whole B10 for £3,000 so I either got the bargain of the century or values have skyrocketed.
 
I don't doubt its value but is this what Alpina engines are going for? If so I need to readdress my agreed value with my insurers. I bought the whole B10 for £3,000 so I either got the bargain of the century or values have skyrocketed.

I'd say the value comes from being newly restored and guaranteed by Mario at VSR1, that is expensive.
 
Rek
FWIW, I didn’t know you could buy a B10 with a fully rebuilt drivetrain for $4200. maybe it is the older Alpina cars that have real value.

https://www.oldtimertrend.com/en/classic-cars/prices/bmw---alpina/(e28)/583f62586e95524c4a0002ef

This is interesting but not terribly relevant IMO. Obviously due to logistics, your package would go to a US buyer. Yes, they could find a grade 5 B9 in Europe then pay $3K to get it to a port. Afterwards, pay at least $1 per mile to transfer it to an engine builder. Pay to have the engine pulled and depending on the state, pay to have the vehicle disposed of. The real cost of course, paying $10K+ for a reputable BMW engine builder to redo the motor. That is of assuming that it is found to be good. Keep in mind that most of the Alpina effort is in the head, the one part that is often bad and potentially unsalvageable on core M30’s.

Not much of this applies if you are a DIY person. We don’t buy $20K motors so this isn’t the thread for us. We move parts ourselves, rebuild them ourselves, and install them ourselves. I’m cheap as hell and applaud the ingenuity and resourcefulness of folks like @Mike Goble. I absolutely love your build Mike! I don’t think that I would ever pay to have a motor rebuilt and I probably wouldn’t attempt it myself out of pure lack of motivation. I’d just find a low mileage car and swap the motor myself (over the course of 5 years) :D

With that said, selling a $60K+ e9 with a $180 B35 might put some buyers on high alert. Going on an enthusiast cruise and breaking down might not be how you want to spend time in your newly restored car. There is inherent value in piece of mind of a fresh motor, and there is very tangible value in having a motor rebuilt by a well known and trusted shop. Lastly, there is brand value associated to genuine Alpina parts. Even though I thoruoughly enjoy DIY stuff, I can see why it makes absolute sense for enthusiasts to pursue professionally rebuilt motors and professionally restored cars. It’s an interesting discussion but not the most appropriate debate for a FS thread. :)
 
Rek
FWIW, I didn’t know you could buy a B10 with a fully rebuilt drivetrain for $4200. maybe it is the older Alpina cars that have real value.

https://www.oldtimertrend.com/en/classic-cars/prices/bmw---alpina/(e28)/583f62586e95524c4a0002ef

My engine was rebuilt 75k miles ago but still seems tight. The rebuild cost £12k but I do believe the owner was ripped off a bit for this. The car it came in had done 300k miles so was a little tired. I think there is an anomaly in the market for cars. The Alpina I bought was valued on the basis of the whole car but the parts were more valuable. The owner just didn't see the value in breaking it up. Anti-geschalt if you wish.


Like I said, I am NOT doubting the value you ascribe, especially with its provenance, just feeling a bit smug at the deal I did.
 
Back
Top