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Re: Should I be worried with these temps?
A 180 thermostat is what I run. You seem to have another issue, but a 180 t-stat would allow full flow cooling before ever letting your engine get so hot in the first place. I think it would help the situation to a point. That's why I run the 180, a wider margin to boiling.
If it isn't timing or fuel/air mix it sounds like air flow from fan isn't cutting it. I may have overlooked it, but didn't see any talk about fan, fan clutch, or shroud. All those are most important with engine running and truck not moving.
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"BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed"
GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project)
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Tim
"Don't call me a redneck. I'm a rough cut country gentleman"
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