I have a 325i with the original motor (M20B25) with 220k miles. It runs okay for now but I'm looking to do a full rebuild/refresh of the motor, with maybe some mild upgrades.
For convenience I was thinking it might make sense to buy another M20 (maybe with lower miles?), rebuild it and then swap it in. But does this make sense? Mostly I'm wondering if I get any advantage of getting a lower-ish mileage M20.
Does the condition of the motor generally matter if you're going to rebuild it anyways? I might consider keeping the one I have if there's zero advantage to going out and finding a lower mileage block.
Thanks!
For convenience I was thinking it might make sense to buy another M20 (maybe with lower miles?), rebuild it and then swap it in. But does this make sense? Mostly I'm wondering if I get any advantage of getting a lower-ish mileage M20.
Does the condition of the motor generally matter if you're going to rebuild it anyways? I might consider keeping the one I have if there's zero advantage to going out and finding a lower mileage block.
Thanks!
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