WTB: Crankshaft 93.80mm Stroke B3 3.3 / B3S

reggid · Post by **reggid** » Mon Oct 11, 2010 10:53 am

Hi,

I am after a crankshaft from Alpina B3 3.3 or B3S which has 93.80mm stroke to suit M50/52/54 series engines. Does anyone know of one?

Thanks

Bruce M · Post by **Bruce M** » Mon Oct 11, 2010 12:56 pm

If you are prepared to pay the price, you should be able to order one from Alpina (via a BMW dealership).

Will not be cheap though. I would imagine it will be a four figure sum.

Then there are the other matching parts (rods, pistons, head, harmonic damper, etc etc) to consider.

reggid · Post by **reggid** » Mon Oct 11, 2010 2:21 pm

Bruce M wrote:If you are prepared to pay the price, you should be able to order one from Alpina (via a BMW dealership).

Will not be cheap though. I would imagine it will be a four figure sum.

Then there are the other matching parts (rods, pistons, head, harmonic damper, etc etc) to consider.

i have a quote from them already. Yes it was 4 figures and the first number was not 1 ...lol
Was hoping someone had a second hand one or something.

Richy_Boy · Post by **Richy_Boy** » Mon Oct 11, 2010 3:58 pm

Hey reggid, are you the guy who messaged my on fanatics?

Alpinas tend to be kept on the road, so it's rare to find an engine lying about from a 3.3/3.4 B3. I think someone on the forum had a whole spare 3.4 engine they bought from a breaker... not sure if they still have it, or what price they would let it go for - wouldn't be cheap though!!

Rich

OAS313 · Post by **OAS313** » Mon Oct 11, 2010 9:25 pm

There was a 3.3 engine on Ebay a few weeks ago. 2.5k though

http://cgi.ebay.co.uk/ws/eBayISAPI.dll? ... K:MEWAX:IT

reggid · Post by **reggid** » Tue Oct 12, 2010 1:22 pm

OAS313 wrote:There was a 3.3 engine on Ebay a few weeks ago. 2.5k though

http://cgi.ebay.co.uk/ws/eBayISAPI.dll? ... K:MEWAX:IT

still cheaper than a new crank....

Bruce M · Post by **Bruce M** » Tue Oct 12, 2010 2:15 pm

reggid wrote:
OAS313 wrote:There was a 3.3 engine on Ebay a few weeks ago. 2.5k though
still cheaper than a new crank....

wow!

Probably worth checking some breakers in Germany. Don't forget, the Z4 alpina roadster S has the same crank.

reggid · Post by **reggid** » Wed Oct 13, 2010 8:33 am

Bruce M wrote:
reggid wrote:
OAS313 wrote:There was a 3.3 engine on Ebay a few weeks ago. 2.5k though
still cheaper than a new crank....
wow!

Probably worth checking some breakers in Germany. Don't forget, the Z4 alpina roadster S has the same crank.

Does anyone know some of the major breakers in Germany? Not being from that area might help narrow it down for me...

sbullard332i · Post by **sbullard332i** » Tue Jun 13, 2017 6:01 pm

Bringing this topic back up if anyone has any ideas where to locate a 3.4L crankshaft