Another Vortec swap thread...
#72
#74
Well, it all went well. Great oil pressure, and coolant temp staying right around 180-183F. It has a small coolant seep from what seems like the freeze plug above the rear main seal (worst possible place). It has gotten better over time so I'm hoping that heat cycling will eventually seal it completely. Other than that, it sounds like a sewing machine. I can feel the extra power. It isn't whoa type power, but more like it should have been from the factory. Enough power to hold interstate speeds up hills while in overdrive. It currently has 245/75/16 tires and is getting 255/85/16s on Thursday, so I'm sure that may change. Overall though, if you are rebuilding a 4.0 for any reason, I highly recommend spending the extra $200-400 to find a good used 4.6 rotating assembly to swap in.
#75
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SinisterMoose
Discovery II
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06-16-2015 04:26 PM