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Hypothetically speaking....

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Old Aug 21, 2015 | 08:14 PM
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Default Hypothetically speaking....

Presume your setup had pushed water and you plan to pop the heads off over the winter. Currently using a LS3 based forged shortblock and 317 truck heads.

I understand that the heads lifting would primarily be tune based as we were only running in the 16-17 PSI range.

Future plans include a 6 bolt block, possibly as early as next year. But for the time being, I'm thinking of tossing on a better head and seeing what I can do with things as is (377 CID, LG Turbo's on the APS kit).

What heads, offered in a 6 bolt configuration, could I use on the LS3 block that would offer gains and a thicker deck to help prevent lifting? Something like an AFR, TFS, or what? ALSO, MUST be cathedral port. I have an LSXR 102 setup that is cathedral port and don't want to bother with swapping manifolds around.

The TFS 235's have had my eye for a LONG time as they've always given good numbers on setups I've seen both in small and larger cube motors, and with the FI that should be exponential. They're probably the top of my list right now.

Just looking for recommendations from the bigger dogs than me. I want to push the current motor past 900 at the tire and go in excess of 1k at the tire with a new motor when it happens.
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Old Aug 23, 2015 | 02:12 PM
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PRC 245's look like decent heads for the money, and are 6 bolt. I may get chastised for this but oh well.
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