Originally Posted by 71Pan
The block sonic tested well over .200 in that area don't know how I would .have cracked the wall tapping a piston in.
No way in the world that you could have caused that crack, NO WAY tskshruggy
I've assembled more than one motor, I see straight scratches in the new honed cylinder a lot from me not getting the file to fit ring ends smooth enough to not scratch the cylinder walls, none of them have ever looked like your does confuseds
Me thinks your shop did not mag that cylinder wall, take it back and have them look at it now to be safe scope twocents
I've had several good auto Hi Po machine shops in SO CA miss external cracks on several different 906 heads that where cracked under the exhaust ports, most shops do a lot more other brands than BB Mopars and neither one was aware that those freeze cracks are not uncommon on 906 heads rant shruggy

Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)