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Idahome
Joined: Wed May 2nd, 2018
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The cracks can get really bad and require replacement
The 5.0 was available with a metal fan for a couple of years, hooray for v8 trucks
220 degrees is a little warm for idling in driveway.
You should be able to watch your ECT from cold start. The temp should reach around 200-205 and then the thermostat opens fully (195 thermostat stock) and allows the engine coolant to start flowing, when this happens temp should drop to way less then 200-205 for a few minutes. I would like to see your truck run a t 195-215 degrees for normal operation, maybe get up to 220-225 in stop and go with AC on. It could be a weak waterpump, a clogged radiator, poor fan clutch (they usually overcool because they stick on) or a faulty thermostat.
Also check condition of radiator cap and coolant itself
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I build custom RBV, specializing in drivetrain conversions, wiring, suspension and complete custom trucks