HELLBM 1552 Report post Posted February 5, 2016 Need help to try and identify the manufacturer of this M20B25 head. Bigger ports than OEM and only has this marking stamped on it: Quote Share this post Link to post Share on other sites
MLM 57 Report post Posted February 5, 2016 Kolbenschmidt? http://www.elringparts.co.uk/products/kolbenschmidt/ Quote Share this post Link to post Share on other sites
HELLBM 1552 Report post Posted February 5, 2016 Thanks for that. Quote Share this post Link to post Share on other sites
BM WORLD 1283 Report post Posted February 5, 2016 seam to remember there where new m20 heads being sold on trade me a while back , not a bmw part 1 Quote Share this post Link to post Share on other sites
tomac 0 Report post Posted May 7, 2016 Hello, Thank you for your post. I've the very same head from Kolbenschmidt (now Kolbenschmidt KSPG). I've the head off the engine for now to replace the valve seals. I was thinking about replacing the whole head by an original 885 with a porting job as I have a 2.8 stroker. Now you are telling that the ports are bigger. I've no reference to compare but it looks very much like the AMC casting (which flows less than the 885) so I'm not sure. So maybe I should keep this head. Any further information ? Thanks ! Quote Share this post Link to post Share on other sites