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SignUp Now!Thank you. So there's no mufflers just straight through? I was worried about my 4.8 not sounding good but yours sounds great.
I'm assuming on that highway pull video it's open dump?
Does the block already have the extra holes?Update... Stepping up the heads over the winter. Removing the CNC ported junkyard heads, going with a set of trick flow 6 bolt LSX heads.
Does the block already have the extra holes?
Sorry I missed that and was thinking It was a production block.Yes, it's a GM performance LSX block