R3VLimited Forums

Go Back   R3VLimited Forums > E30 Technical Forums > 24V Engine Swaps

Thread Tools Search this Thread
Old 12-08-2018, 08:10 AM   #1
Advanced Member
Join Date: Oct 2013
Location: Bucharest Romania
Posts: 151
Piston identification - HELP !!!

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.
Attached Images
File Type: jpg 328-1.jpg (42.2 KB, 17 views)
File Type: jpg 328-2.jpg (55.8 KB, 12 views)
MclubSport is offline   Reply With Quote
Old 12-13-2018, 03:59 PM   #2
CMBusch's Avatar
Join Date: Aug 2016
Location: Philly
Posts: 95
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 at 04:07 PM.
CMBusch is offline   Reply With Quote
Old 12-14-2018, 12:02 AM   #3
E30 Addict
pazi88's Avatar
Join Date: Sep 2015
Location: Finland
Posts: 427
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 at 12:08 AM.
pazi88 is online now   Reply With Quote

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

All times are GMT -7. The time now is 12:29 PM.

Powered by vBulletin® Version 3.8.10
Copyright ©2000 - 2018, vBulletin Solutions, Inc.
Copyright 2004 - 2020 R3VLimited LLC