Quote:
Originally Posted by gmc684x4
From reading up some aluminum rads can cool better from being able to have larger wider tubes then old 4 core copper rads
Stock caps are 15 psi with overflow tank i would be inclined to look for a cap at 15 psi with overflow capability
Places like rock auto list all aluminium rads for our trucks
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I have heard that 13 PSI is normal for trucks w/o A/C and 16 PSI for trucks with A/C, but I ain't the Pope, so I could be wrong. The higher pressure cap raises the temp needed to boil over.
I put a wider V8-type radiator in front of the 292 L6 in my '68 C/10, when I found the L6 width was NLA.
Mine's still a copper/brass type. Do you have to use the Orange antifreeze in an aluminum radiator?