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E36 (1991 - 1999)
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  #1  
Old 04-29-2020, 09:08 AM
awe90m3 awe90m3 is offline
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m50NV stroker build help

Planning on building an M50NV stroker with m54b30 parts. I currently own both of these motors, and have a few questions I'm getting mixed answers to:

Plan:

M50NV motor
M54 crankshaft
m54 pistons and rods
m54 intake camshaft
Move m50NV intake cam to exhaust side

That being said, my understanding was that the m54 intake cam could be installed in an M50NV no problem, using all NV hardware. Is this correct? Do I need M54 sprocket or any other hardware to properly install into the M50NV?

Also, if m54 and M50NV cams are identical, why not just leave the m50NV intake in place and install the M54 intake cam into the exhaust side of my m50?
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  #2  
Old 05-02-2020, 11:06 PM
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hornhospital hornhospital is offline
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Welcome to Bimmerfest!

I'm hoping one of the guys that's done this will jump in here and help. They know all about what combination of cranks, blocks and pistons will work.
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Last edited by hornhospital; 05-18-2020 at 11:49 AM.
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Old 05-03-2020, 09:52 AM
awe90m3 awe90m3 is offline
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Originally Posted by hornhospital View Post
Welcome to Bimmerfest!

I'm hoping one of the guys that's done this will jump in here and help. They know all about what combination of cranks, blocks and pistons will work.

Hey thanks! As you can tell I'm new here . But sounds like I've landed in the right place.


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Last edited by hornhospital; 05-18-2020 at 11:50 AM.
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Old 05-03-2020, 01:12 PM
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southpark11235 southpark11235 is offline
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Quote:
Originally Posted by awe90m3 View Post
Planning on building an M50NV stroker with m54b30 parts. I currently own both of these motors, and have a few questions I'm getting mixed answers to:

Plan:

M50NV motor
M54 crankshaft
m54 pistons and rods
m54 intake camshaft
Move m50NV intake cam to exhaust side

That being said, my understanding was that the m54 intake cam could be installed in an M50NV no problem, using all NV hardware. Is this correct? Do I need M54 sprocket or any other hardware to properly install into the M50NV?

Also, if m54 and M50NV cams are identical, why not just leave the m50NV intake in place and install the M54 intake cam into the exhaust side of my m50?
From what I understand you will need the M54 cam trays, caps and lifters for the intake cam to work. They are different between the M50 and M52/M54. You are also probably going to need to remove the VANOS cam gear form the M54 cam. It just unthreads from the cam with a big allen key. I had to do that when I was swapping the VANOS gear from my M52b25 cam to my aftermarket cam during my own stoker build. It is not has bad as a lot of people say it is just a little stressful because it takes a lot of force to get it off. I used a breaker bar on the gear and a large wrench on the square nut on the back of the cam.
Most people are swapping cams on a head with VANOS so they need the hole for the VANOS gear on the intake cam which is why they go M54b30 intake and M50NV exhaust. In your case I don't see a reason you couldn't just put the M54b30 cam on the exhaust and keep the M50NV on the intake because you don't want either to have VANOS.
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Old 05-03-2020, 09:55 PM
awe90m3 awe90m3 is offline
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Originally Posted by southpark11235 View Post
From what I understand you will need the M54 cam trays, caps and lifters for the intake cam to work. They are different between the M50 and M52/M54. You are also probably going to need to remove the VANOS cam gear form the M54 cam. It just unthreads from the cam with a big allen key. I had to do that when I was swapping the VANOS gear from my M52b25 cam to my aftermarket cam during my own stoker build. It is not has bad as a lot of people say it is just a little stressful because it takes a lot of force to get it off. I used a breaker bar on the gear and a large wrench on the square nut on the back of the cam.
Most people are swapping cams on a head with VANOS so they need the hole for the VANOS gear on the intake cam which is why they go M54b30 intake and M50NV exhaust. In your case I don't see a reason you couldn't just put the M54b30 cam on the exhaust and keep the M50NV on the intake because you don't want either to have VANOS.

Ah, I was under the impression that since the m54 and NV cams are about the same that the tray/caps/lifters were identical. Glad I kept the m54 parts, thank you! Fair enough, Ill hit it with an impact and see if it wont budge. And agreed, no reason to move the intake cam if I dont have to! Thanks again bud


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Old 05-18-2020, 08:26 AM
awe90m3 awe90m3 is offline
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Bump! Any other thoughts?


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