And THIS boys and girls, is why a lot of us tell you NOT to max overbore your blocks. Thin walls make less power, and they split easier. This guy WOULD have made more power, with a .010 over 360 block and it would likely have lived a long life making the 500ish actual power his thin wall grenade was making. BUT.... he was running around telling everyone how bad *** his "318" is/was. Uncle tony wanna be.