Blew up my LT5, Let the grieving begin.

[mike100]

Originally Posted by bad-zr1

One other thing you can try if you have eliminated the accessories is to remove one plug wire at a time. Use insulated pliers and have them loose before hand. It will identify what cylinder is causing the noise if it's in the bottom end. If the noise stays the same I would suspect something besides the rod or piston.
Good luck

yes, this- an easy enough quick test that will tell you if the lower end is suspect.