LS6 spring shift points
The 5.7 LS6 Zo6 had light weight valves so they could rev a little higher. I would shift 6100-6200 with 1.85's and move the fuel cut off to 6300.
Your still using heavy DOD lifters so don't rev too high!
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My shift point is 7k but i have my engine completely built and also have a cam that makes power up there. Even with that, i stop making power at like 6500k.
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