I have broke 3 cyl walls.. 2 of them on the same hole which was sleeved
and 1 on another engine... all been on 340 blocks.. thats all I run
Just curious, would you speculate at all on the primary cause? RPM related load or peak cylinder pressure?
I ask because I am putting a 5.9 magnum in my 69 Coronet and am planning on E85 & 11-15 psi boost (no intercooler) I was planning shifting at 5500 rpm and the limiter set at 5800
I want to believe that holding the RPM down will help keep it together.
I'm pretty sure it was a weak area in the block.. I do run high rpm but that
has never been a issue.. I didnt measure those blocks but it might have
been core shift.. for yours just measure the thickness... now days I measure
all my stuff
EDIT
all these blocks were/are 340 .030 over
