[68gt500]

@Sizzler

Thankx for including my post - and exposing it to a wider audience.

@George: We haven´t gotten any further yet.
I assume if a block is rough bored - then we know it has to be finish honed to size. No problem!
What really puzzled us, was that the walls are finish honed to a perfect crosshatch - but slightly undersized and with a 4 thou taper small at top, larger at bottom. We asked ourselves why Shelby would they do that ?? Is that a requirement for the aluminum block ?? That is wat got this thread started.

From all the feedback we have recieved we conclude, that we´ll just have to have that corrected and move on.