December 14, 2011I am going to be replacing the heads on my truck because I think one or both are cracked. I found some used heads and they are noncastech heads. So I guess my question is is there a better casting between 706`s or 862`s?
Forums : Silverado (c/k) (1999 - 2006) : Question on heads (8867 Views)
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December 14, 2011The 5.3 706 heads are popular due to the small combustion chamber and good flow potential with porting and larger valves.