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Re: 85 E28 M5 motor time (archive)
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Posted by IERACER on March 14, 2001 at 18:50:08:

In Reply to: 85 E28 M5 motor time posted by Alex on March 14, 2001 at 16:09:57:


If it is a really clean car it would be fairly rare car.It would be worth it to buy a new motor.I don't care what ever body says & claims nobody but bmw can put it together to make run for another 180k.Why do you think you need to do the motor anyway.Please advise,I've got a cool screen saver with a picture of your car if you want a copy.
Ok, I've got an 85 European M5 (grey marketed into the us, NOT an m535), with 180,000 miles on it. I've had virtually everything ELSE rebuilt on the car (tranny, new exhaust, etc. etc.). Now it's time for the motor.

I can:

1) have it rebuilt with parts
2) buy a factory rebuilt
3) buy an aftermarket rebuilt
4) buy a used motor.

1) seems too much like a crapshoot. 4) is right out.
2) is probably too expensive. 3) seems like the best answer. I've seen several companies that advertise rebuilds. One has 3.8 liter stroker (bav engine exchange) and one has 3.7 and 3.9 liter strokers (metric mechanic). Anyone have any experience with any of these motors in terms of strength, hp, reliability, smog, etc.?

thanks...




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