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Found this chunk of aluminum inside the passenger side head. It was barely hanging on to the area between the back two cylinders on the passenger side (second pic). Looks like a leftover from when the heads were cast. Amazing that it hadn't fallen off on it's own. Truck is a 2010 with over 107k on it.

Anyone else found something similar?

311095

311096
 

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Found this chunk of aluminum inside the passenger side head. It was barely hanging on to the area between the back two cylinders on the passenger side (second pic). Looks like a leftover from when the heads were cast. Amazing that it hadn't fallen off on it's own. Truck is a 2010 with over 107k on it.

Anyone else found something similar?

View attachment 311095
View attachment 311096
Should've cropped that 1st pic.
 

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That is a piece of casting flash, either from the mold or core not sitting tight against the other half of the mold. In your picture of the head you can see some of it on both the front and back of the head, by the cam lobes. This is common in the making of castings and how much of it that is allowed is determined by the engineers. It usually stays attached unless it is hit by something. Just a FYI
 

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That is a piece of casting flash, either from the mold or core not sitting tight against the other half of the mold. In your picture of the head you can see some of it on both the front and back of the head, by the cam lobes. This is common in the making of castings and how much of it that is allowed is determined by the engineers. It usually stays attached unless it is hit by something. Just a FYI
Thanks for the explanation. Just curious, how is the excess knocked off? This seems like a pretty big chunk (7/8" long, 1/4" wide) and broke off very easily
 

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Thanks for the explanation. Just curious, how is the excess knocked off? This seems like a pretty big chunk (7/8" long, 1/4" wide) and broke off very easily
Most of the castings I dealt with we used a 4 foot industrial grinding wheel or burr grinder depending on location. We were only allowed flush to .060" or flush to .090". They can be hit with a hammer also if you have the tolerance to allow for the quicker removal.
 
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