E36 323ic Major trouble!!!

[vhazzey]

i have terrible news! today i over revved my 323ic by miss shifting into first, over clocking the engine, i want to know what the worst case scenarios could be... also thinking about s54 swap... but would need further info on that thank everyone hope to hear back!!!

[mickey1984]

Google "Money shift". What problems are you having with it now?

[slocar]

If it still runs well, you did nothing bad.


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[vhazzey]

idols at 800rpm... car sounds like a tank/motorcycle... falls on its face after about 45 seconds of idol, and yes thats what i did haha very careless on my part

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it starts up and runs but is very rough and the car shakes

[AdrianE36]

You have bent valves at the minimum. The easiest and cheapest route would be to find a replacement engine. But if you're looking at an S54 swap, look around any local junk yards and start saving up.

[vhazzey]

I've been doing a lot of research but can't find an engine with 80k or less mine only had 78k

[Auto Parts Guy]

LSx & T56 time

[JEC928]

I've been doing a lot of research but can't find an engine with 80k or less mine only had 78k

Low-mileage engines are going to be rare items, usually found bolted inside low-mileage cars.

I would look for compression and leak-down tested motors rather than mileage, as even low-milers can be abused.

You have sooo many options for swapping, though!
-> M52, same generation as yours but more displacement, very low cost and plug-n-play.
-> S52, same plug-n-play as M52 but more $ because that cute M-power valve cover brings moar ponies and torques.
-> M54B30, a bargain deal (less $ than S52) for gobs of torque and tunability, and there are wiring adapter kits to make it near plug-n-play.
-> S54, $$$ but far closer to bolt-in than the V8s or Japanese turbo 6s.
-> The aforementioned LSx, much aftermarket support for this.
-> Coyote Ford V8, dare to be different
-> 1JZ/2JZ/RB30, make it sing

[AdrianE36]

^^^Everything he said^^^

And the M52 in my car had 115K when it got pulled from the donor car. Still runs strong. Even the 204K motor that it replaced it (due to a fail-tastic miss-shift) ran strong.

Also once you do settle on a motor, replace any gaskets that might be hard to get to once the motor is in (oil pan gasket & oil filter housing gasket if you go the M52/S52 route).