LS6 Cam and 5.3L Heads
09-04-2006, 04:38 AM
#2
No issues with the PCM. I am sure that it has been done several times over. Why an LS6 cam with a 5.3 head anyway? Most people run that cam for forced induction. You are going to be raising your CR to about 11.1:1 with those heads and depending on what gaskets you choose.
I would re-think the cam choice IMO.
I would re-think the cam choice IMO.
09-04-2006, 08:36 AM
#3
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I figured i'd get asked about that. My setup is not what I would call ideal. It just happens to be how it turned out. I was looking to swap an LS6 into 87 Supra. A guy I know at TPiS told me about a shortblock they were selling with 5k miles on it. I picked that up, but still needed heads. I bought the 5.3L heads because they had 15k on them for $150. According to Clay at TPiS my compression should be about 11.2:1 with factory head gaskets. Raising compression does not bother me. However, I was going to run a TR224 which would bring my dynamic compression to around 8.3:1, versus 8.8:1 on the LS6 cam. My budget keeps shrinking and I want to get this project completed so I can drive it.
So it makes sense to me to use everything I already have if it is possible on pump gas without any major issues.
So it makes sense to me to use everything I already have if it is possible on pump gas without any major issues.
