Lost my motor today

[Track Junky]

Well after 155,000 hard miles my 2001 Siverado lost #7 piston. I fired it up this morning and I noticed it had a miss. Took it to the shop cause I had to smog it anyways.
They noticed the misfire and then did a compression test. good all around except for cylinder #7 only giving 70 lbs of compression. Pulled valve cover to check valve springs and they were fine.
By Wednesday and $5600 later she should have a new motor in her.

OUCH!!