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Old 11-11-2012, 11:50 AM   #1
seanmccarthy
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2002 330i motor swap

Hello, I am having some trouble identifying the motor I purchased for my car. I bought a 2002 330i motor from a salvage yard, and I don't think it's what they say it is. The motor fit just about fine, but it's slightly different. I was thinking maybe its just a slightly different year 330i but I can't find any information from the serial number online. I compared the oil pan to other ones from other BMW's and the one that is on my engine matches a 525i oil pan. Could somebody possibly please give me a hand in identifying what motor I have installed into my 330i?
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Old 11-11-2012, 01:06 PM   #2
flashmeow
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look in the back side on your engine (toward the #6 cylinder) and you will see sticker/vin stating the engine type. other than that, it is really hard to tell the difference between the M52TU/M54 engine apart (when just comparing the engine w/o any accessories).

you can tell the 330 from the 325 by removing the intake manifold and looking at the shape of the ports. One is a D shape and the other is just oval. another method is remove the valve cover and look at the camshafts. look for the P/N on the camshaft. the P/N on the camshaft is how I verified that I actually bought a M54B30 ZHP engine and not some regular 330 or even a 325 engine.

I hope this helps
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Old 11-11-2012, 01:08 PM   #3
seanmccarthy
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Thank you for the tips, I'll have to give it another look
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Old 11-11-2012, 01:10 PM   #4
seanmccarthy
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Also, on the intake manifold ports, is the 330 D shaped or the 325?
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Old 11-11-2012, 01:18 PM   #5
flashmeow
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Quote:
Originally Posted by seanmccarthy View Post
Also, on the intake manifold ports, is the 330 D shaped or the 325?
please search my "m54b30 intake manifold swap" thread for pix and answer. I dont remember the answer from the top of my head so I have to find my thread and look for it myself
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Old 11-11-2012, 01:19 PM   #6
seanmccarthy
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I will take a look, thanks again
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Old 11-11-2012, 01:23 PM   #7
flashmeow
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again, it is very hard to tell the difference with just the bare/bone engine w/o any attachment/accessories. however, assuming you bought the engine with the accessories then you will know that the 330 has the following:

purple injector. all other m54/m52tu has black fuel injectors
3.0 throttle body. 325/323 has 2.5 inch throttle body.
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Old 11-11-2012, 01:25 PM   #8
seanmccarthy
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It was basically just the block that I bought, almost stripped clean
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Old 11-11-2012, 01:28 PM   #9
flashmeow
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Quote:
Originally Posted by seanmccarthy View Post
It was basically just the block that I bought, almost stripped clean

darn it. gosh...your safe bet is look at the intake manfold port then. however, don't mean to make you anymore paranoid but anyone can put a 330 intake manifold in their 323/325 though (just like what I did).

your safest bet is to remove the valve cover and look at those camshaft.

brb...with pix of ZHP cameshaft
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Old 11-11-2012, 01:29 PM   #10
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Post a few pictures or give the numbers
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Old 11-11-2012, 01:31 PM   #11
seanmccarthy
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I can have pictures of it tomorrow, the serial number I found on it was 33622895
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Old 11-11-2012, 01:33 PM   #12
flashmeow
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OP...here is some example of the 330 ZHP camshaft numbers/

http://forum.e46fanatics.com/showpos...4&postcount=93

OP. If your 330 throttle body (3.0 inch) fits your intake manifold then you have a 330 intake manifold. no need to remove the intake manifold just to look at the ports.
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Old 11-11-2012, 01:38 PM   #13
seanmccarthy
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I am replacing the intake manifold on the new motor with a good one from a blown 330i motor. I'm going to have to compare it to some of those pictures tomorrow
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Old 11-12-2012, 04:38 AM   #14
seanmccarthy
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Quote:
Originally Posted by flashtwosix View Post
OP...here is some example of the 330 ZHP camshaft numbers/

http://forum.e46fanatics.com/showpos...4&postcount=93

OP. If your 330 throttle body (3.0 inch) fits your intake manifold then you have a 330 intake manifold. no need to remove the intake manifold just to look at the ports.
The pictures in this thread, are they of a 330i motor? (I'm sorry, I'm not very mechanically inclined, and kind of new at this) If so, the intake manifold ports were also D-shaped on the new engine. I know that's not a 100% indicator of having a 330i motor, but it's a pretty good one, right?
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Old 11-11-2012, 01:37 PM   #15
flashmeow
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also...don't get too paranoid about the drain pan. all M54 drain pan are different on the 3, 5, x series. see my thread for references on the pan

http://forum.e46fanatics.com/showpos...&postcount=110
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Old 11-11-2012, 01:43 PM   #16
seanmccarthy
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You have been incredibly helpful. I will update tomorrow with my findings, if any, and a few pictures
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Old 11-12-2012, 07:27 AM   #17
flashmeow
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Quote:
Originally Posted by seanmccarthy View Post
The pictures in this thread, are they of a 330i motor? (I'm sorry, I'm not very mechanically inclined, and kind of new at this) If so, the intake manifold ports were also D-shaped on the new engine. I know that's not a 100% indicator of having a 330i motor, but it's a pretty good one, right?
The pictures in the url I provided are indeed from a 330. However, the pictures of the intake manifold port is found on another thread. I haven't look it up yet but I think the title is something like m54b30 intake manifold swap

sent from my dahc-6900 using Bimmer App
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