It depends on the year/model of the TDI head, the year/model of the 1.6
block, and finally what you mean  by "work". Let's say no to the work
part and partial yes to the bolt up part. The big problems are not the
block but how the 2 types of engine differ inside the block and outside
the block.

Mark

ralph meyermann wrote:
> Hi all Im still learning about my first vw/westy. Most of my engine builds
> have been domestics, I know that most small block chevy's the heads will
> interchange. My question is could a head from a tdi bolt up and work on my
> 1.6 na block? I know they are similar blocks but don't know how close they
> are? Thanks
>