BMW 1.9L cylinder head M44, newly rebuilt w/receipts
 

Advice needed, buy this head to mess around with and try
to build it for more power?

If you want to improve on the M42, M44 or any BMW head, you better know exactly what your doing. There is not a lot to be had, and its all labor so it = cubic dollars. I'd estimate about 3K dollars for a full on full performance titanium valved wonder. Tweeked cams, etc. Then add dyno time to exploit it, remember you have to find a dyno shop with a engine dyno set up for BMW engines. Its WAY cheaper to have a good engine builder just set your engine up for a DASC and go for it... :) There is NO substitute for cubic inches of air + fuel.

Dave

Whats an ideal build for DASC?