Thread: 7.3 Carnage.
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Old Thu, February 4th, 2021, 06:31 AM
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Yes, the valves in that particular cylinder are supposed to be in the head, not the piston.

However, they did not travel from their home due to any issue listed.

A couple more pictures:
Cylinder 6 was the initial failure and as you can see, the block is cracked at the 2 o'clock position in #6 (picture rotated 90 degrees counterclockwise) and cylinder #8 that ate some of the chunks (#6 wasn't selfish and decided to share), cracked the cylinder wall at the 2 o'clock position as well. That whole section of the block was BROKEN all the way to the lifter bores. The tuning that was flashed to the PCM long before I ever saw this thing...well...it was HOT. But that's not why it failed.



The answer will be revealed a bit later but here's another hint: There is a reason the cylinder heads were pictured side by side and keep in mind that this engine was recently remanufactured.
Attached Images
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File Type: jpg 20190622_161935.jpg (474.4 KB, 14 views)

Last edited by cleatus12r; Thu, February 4th, 2021 at 10:39 AM.
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