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5.3L Engine Rebuild Home

Figure 1
Figure 1
Figure 2
Figure 2

Figure 1 and 2. The teardown of the engine begins. The exhaust manifolds were removed and the discovery of broken manifold bolts was a little surprising. After some research, it seems this is not that uncommon. Four bolts were found broken. The bolts broke right behind the head which allowed them to be removed with vice grips. As you can see, these are 862 truck heads. A pair of 243/799 heads were located for a reasonable price, and the 862 heads will not be used in this build.

Figure 4
Figure 4
Figure 3
Figure 3

Figure 3. The new heads after they are refurbished will add nicely to the power output of the engine.

Figure 4. Parts acquisition has also begun with a set of new floating pin gen IV connecting rods. While these rods are not as good as aftermarket rods, they are better than the original gen III rods that came with the engine.

 

Disclaimer: The information provided here is how I did it. I strongly urge you to do your own research and make sure you do it right. No claim is made that the information provided is the only way it should be done, or that you should follow my work without verifying for yourself that it is correct. You are free to do as you choose with the information shared here, but you do so at your own risk.


 
 
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