Saw pic below (kodiak/topkick) at the junk yard and it got my mind going. How many of these parts can be transplanted onto a gmt400? I have a 7.4L and that fan+clutch looks enticing.
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Also after doing some research, it seems that this truck has the same engine as me (7400 vortec) but with coil on plug ignition. I never even knew that was a thing with big blocks outside of the 8.1L.
Update: it seems this truck has the L21, I never knew the L29 had a tougher brother.