I have one set left of 1.9 AMC heads that I purchased from Boston Bob.
These will allow you to build a higher compression waterboxer.
They have been NLA for years now.
Brand New in the boxes.

My days of building another higher compression waterboxer�are�done.
I am running a 2.2 wbxer with these heads & ratio rockers in a 91 Syncro.
I would estimate that the engine has 15% more power than a stock 2.1.
I run larger tires on 16" rims and this van will still out perform a stock wbxer with ease.

http://www.thesamba.com/vw/classifieds/detail.php?id=945522

dylan