Please help me to identify this piston. I find on 8 weeks on google on facebook on ebay. I can't identify... Was in a block M50 stroker with 328 crank and I have 5 pistons... I want to rebuild the engine.
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Piston identification - HELP !!!
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Well, I can tell you it's not from a M50TUB25 or a M25B28. They don't have the dish pistons. Most likely from a M50NV. What's the diameter?
Here's a good website to use. There's a chart with relevant piston info towards the bottom of the page.
EDIT: If you're using those pistons with 135mm rods and a 2.8L crank and they are from a NV, you're going to be 4.88mm above the deck at TDC.Last edited by CMBusch; 12-13-2018, 04:07 PM.Originally posted by MelonEngine work takes patience and finesse.
Suspension work takes anger, a big fucking hammer, and a torch.
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Definitely not m52b28 piston. Doesn't even look like M50NV piston. Maybe m50 vanos piston, but can't be sure. Almost all m5x engines with 84mm bore have flat top piston. And normally BMW pistons have markings on the top of the piston, but those don't have.Last edited by pazi88; 12-14-2018, 12:08 AM.
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I also would like to know what piston that is as well. It looks similar to the m50nv. Could it be from the m42b18? I have a pics of rods and pistons from; m20b27, m50nv, earlier m50b25tu, later m50b25tu, m52b28 and m54b30. I’ll post them as soon as I figure out how to paste them or download them onto this reply.
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