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How can a brad new GM short block do this...

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Old Oct 10, 2011 | 02:11 PM
  #1  
Gecz28's Avatar
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From: Pittsburgh
Car: 88 iroc vert
How can a brad new GM short block do this...

break a main cap bolt???
just finished building my engine. i got the short block from a guy and it was brand new, still had paint marks on the rods ect. i put the top end on it, bolted it in the car and fired it up to break it in. i noticed it was leaking oil front the pan. so i puller the pan off and found the top half of a main cap bolt laying in the pan!? WTF !!
everything is new except cam, rockers and carb.

any thoughts on this??

mike
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Old Oct 10, 2011 | 09:09 PM
  #2  
Apeiron's Avatar
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From: Mercedes Norte, Heredia, Costa Rica
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
Re: How can a brad new GM short block do this...

Sometimes things break.
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