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Mr Handy · 11-22-2017, 08:20 PM

first thing I would check is timing. a little more timing may help. I have a 350 with manual trans and this summer in traffic the truck would sit on the 180 stat. only time I go above the 180 mark is with sustained rpms above 2500 and we are talking 7-10 degrees. I think the hottest my engine got this summer was 192* and it was a 95* 90% humidity day and I was blasting 75mph for 20 miles with the AC blasting. pulled off on my exit and dropped to 180 waiting in the light.
if timing does not help its time to look at the fan/schroud. After that it the rad itself. I run a 4 row rad with a 7 blade clutch fan. basically factory hd cooling system.I'm running vintage air ac not stock if it makes a difference.

lean mix will also cause you to run hot, pull a couple plugs and take a look.

11-22-2017, 08:20 PM	#2
Mr Handy Registered User Join Date: Feb 2013 Location: Spring Hill, Florida Posts: 465	Re: Should I be worried with these temps? first thing I would check is timing. a little more timing may help. I have a 350 with manual trans and this summer in traffic the truck would sit on the 180 stat. only time I go above the 180 mark is with sustained rpms above 2500 and we are talking 7-10 degrees. I think the hottest my engine got this summer was 192* and it was a 95* 90% humidity day and I was blasting 75mph for 20 miles with the AC blasting. pulled off on my exit and dropped to 180 waiting in the light. if timing does not help its time to look at the fan/schroud. After that it the rad itself. I run a 4 row rad with a 7 blade clutch fan. basically factory hd cooling system.I'm running vintage air ac not stock if it makes a difference. lean mix will also cause you to run hot, pull a couple plugs and take a look.