In Reply to: Q: Are the M3 cams the ... (more) posted by KevinS on May 08, 2000 at 06:31:56:
I believe YES and here are my arguments:
1 - The 'BMW mobile tradition' cd rom gives part# 11-31-1-310-521 for both. You may not want to buy one only Schrick cam, but you may want to renew a scorned original cam!
2 - Each cam has TWO timing marks @ 90deg difference: One to be used when the cam is installed as intake & one as exhaust.
3 - nos 1 & 2 & 'common sense'
Hope I helped!