Jump to content
View in the app

A better way to browse. Learn more.
Bimmer Owners Club - BMW Forum for BMW Owners

A full-screen app on your home screen with push notifications, badges and more.

To install this app on iOS and iPadOS
  1. Tap the Share icon in Safari
  2. Scroll the menu and tap Add to Home Screen.
  3. Tap Add in the top-right corner.
To install this app on Android
  1. Tap the 3-dot menu (⋮) in the top-right corner of the browser.
  2. Tap Add to Home screen or Install app.
  3. Confirm by tapping Install.

E30 320I 2.0L To 2.5L Conversion

sideways
in BMW 3 Series Forum

Featured Replies

Hi, I am new to this forum. I have just purchased a 1989 E30 320i and was wondering if it's possible to get the crank, pistons and rods from a 325 and replace them with my ones. Obviously the block would need to be bored to 84mm to match and probably the head off a 325 as well due to the larger valves. But is it possible to use this as a stroker kit as the engines are pretty much the same?

Cheers for any help

  • Quote

    Far easier AND cheaper to drop a bigger unit in her !!:huh:

  • Quote

    So you want to change your B20 into a B25/7? As dabs said, Get yourself an entire lump and drop it in. Much cheaper and less work.

    Many people have dropped an M52 into my E28 so I wonder if its worth doing it to an E30. A Vanos system does sound nice.....

  • Quote

    • Latest Deals

    BMW Official Store for genuine BMW parts & accessories

    Disclaimer: As the club is an eBay Partner, The club may be compensated if you make a purchase via eBay links

    Join the conversation

    You can post now and register later. If you have an account, sign in now to post with your account.
    Note: Your post will require moderator approval before it will be visible.

    Guest
    Reply to this topic...
    https://www.bimmerownersclub.com/forums/topic/6467-e30-320i-20l-to-25l-conversion/
    Go to topic listing
    eBay disclaimer: As the club is an eBay Partner, The club may be compensated if you make a purchase you make on eBay via the club.

    DISCLAIMER: Bimmerownersclub.com is an independent BMW car forum for owners of BMW vehicles. The club is not part of BMW nor affiliated with or endorsed by the offical BMW AG in any way. The material contained in the forums is submitted by the general public, and is not endorsed by Bimmer Owners Club, BMW AG, or Bayerische Motoren Werke AG. The official website for BMW AG can be found at http://www.bmw.co.uk
    Background Picker
    Customize Layout

    Configure browser push notifications
    Chrome (Android)
    1. Tap the lock icon next to the address bar.
    2. Tap Permissions → Notifications.
    3. Adjust your preference.
    Chrome (Desktop)
    1. Click the padlock icon in the address bar.
    2. Select Site settings.
    3. Find Notifications and adjust your preference.