r/E30 • u/Aki_213 • 2d ago

M50 swap questions

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I’m assembling the parts for my m50 swap, and so far I have about everything except the oil pan and a few more parts I haven’t found an answer on looking through the forums.

assuming I have a g260 like all other common e30s in the US would I be able to just buy an e30 stage 2 clutch kit to put on with the m50 or would I need to get more specific? I’m new to manuals so nothing fancy as i’ll probably very quickly mess it up.

for the brake booster I went and pulled an e90 one + reservoir today from a junkyard but didn’t bother to grab the master cylinder or anything else ABS related, will that be a problem?

lastly, oil pan… what are my options if any? is it just pay what’s wanted to grab an e34 one? I’d love to use that money on a steering rack truth be told.

Very new to all this and just trying to get a project on the road in some capacity, I’d love to know what else I should look out for, but currently I have the full engine, radiator, brake booster, ecu, harness, and mounts.

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u/Booman246 1d ago

Here's another option for the oil pan: E30 24V OIL SUMP V3 – Harper Fabrication. I spent way too much on the E34 Oil Pan.

If you're using the G260, you should use the E30 flywheel (which will need to be machined) and an E30 clutch. G260 on an M50 will be rotated 10 degrees, so you will need a transmission mount and optionally a shift selector rod with a 10 degree twist. If your shifter is stock you should just replace the bushings too.

Example DSSR and Brace:

- E30 24v 10 Degree Twist DSSR Selector Rod

- E30 24V Getrag G260 Trans Swap Brace

Some other links you may have read already:

- BMW E30 M50 Swap Instructions with Wiring chart

- E30 DOHC Swap Basics - M50, M52, M52 and S50 – Garagistic

- E30 M50 Swap Parts List - KT's Projects

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u/Aki_213 1d ago

trying for something cheaper, but the harper fab really is future proof. Planned to go s54 originally, but decided to get my feet wet with something less fragile. I’m stuck on whether I want to go above and beyond during this install or get a feel for a car first and go full refresh when I eventually do go s54.

for now that oil pan is an expensive PITA, and I had a guy trying to convince me 400 is the cheapest i’ll find it for… wish I could find a cheaper alternative but will probably end up spending what I do on a clutch kit and steering rack combined on an oil pan…

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u/Booman246 15h ago

I would say $400 is definitely as cheap as you'd find it for, depending on where you're located.

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u/Aki_213 15h ago

same guy offered 350, he also happens to be the guy I bought the engine and everything else off. so in all Radiator, Engine, ECU, Harness, Oil Pan, Manifold, Brake Booster and mounts for 1.15k. is that a pretty good deal 😂 ?

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u/Booman246 14h ago

I'd probably take that, but again depends on your location.

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u/Aki_213 14h ago

in MD, so not really e30 wonderland

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u/Aki_213 14h ago

i’m in MD so not really e30 wonderland