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LS short box · 07-10-2020, 10:34 PM

No idea about the "5" on the pistons. You may want to consider L92 heads but that means you will need a LS3 type intake due to the square port L92 heads.
Tons of LS6 type ported heads out there if want to keep the LS6 stuff you already have.
Your 317 heads are as good as they get for a stock head that work with your LS6 intake.

07-10-2020, 10:34 PM	#11
LS short box Registered User Join Date: Jun 2015 Location: Carlos MN Posts: 1,924	Re: What should I do with this CL find 6.0L LQ9 ? No idea about the "5" on the pistons. You may want to consider L92 heads but that means you will need a LS3 type intake due to the square port L92 heads. Tons of LS6 type ported heads out there if want to keep the LS6 stuff you already have. Your 317 heads are as good as they get for a stock head that work with your LS6 intake.