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#2
08-28-2003, 03:38 AM
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Re: Hot-running LS6
My 70 L78 TH400/4:10 was running 210+.
I checked all I mentioned earlier,and then Changed my gas blend.I run highest the station has at the pump,then add Protek Lead/Octane boost.By verying the mixture,I found it actually showed an Increase/decrease in my cooling system Temp. Albeit slight,but still a difference. Today I found the best is 20 Gallons of Mobil gas,with 11 oz.Protek additive. I only run 185-190 degrees now. 
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#3
08-28-2003, 03:47 AM
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Re: Hot-running LS6
Interesting guys. I am running between 200-210+ with my LS5 TH400. Rick I have done all the fixes you mentioned including boiling the tanks & recoring my original radiator, changing to a Mr. Gasket 160 thermostat, and am running 20W50 Penzoil. Would the timing be an issue?
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Frank Magallon
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#5
08-28-2003, 04:01 AM
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Re: Hot-running LS6
Rick believe it or not I have never adjusted the timing under my ownership for over 2 1/2 years and 12000+ miles! The car has run perfect and has had not had ONE mechanical failure or problem in that time! (knock on wood) So I am not really sure. [img]/ubbthreads/images/graemlins/blush.gif[/img]
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Frank Magallon
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#6
08-28-2003, 04:50 AM
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Re: Hot-running LS6
I would check the Gauge first to make sure it is correct!Sometimes the gauges are not CORRECT! then the timing,and then use a 160 or 180 degree ROBERT SHAW thermostat.I had a slight overheating problem and worked with the timing,and change to the Robert shaw thermostat and lowred my temp 10 degrees.Please do not try the coolant additives such as WETTER WATER and PURPLE ICE,They do not work!If you have not flushed your coolant system in the 2 years I would think you should do that also and use a good brand of coolant.Hope this helps
Bobby
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