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How much to rev a boosted 5.3?

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Old 09-01-2013, 11:30 AM
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Default How much to rev a boosted 5.3?

Hi

Im swapping in an lm7 in car and wonder how much would be ok to rev it?

Im change the cam but don't know yet To what. I will also use Comp Dual 675 spring/Comp Pushrods.

I have only worked with straight 6 before.

Would 6500 rpm be to much? The engine will be boosted for around 700 rwhp

Last edited by Turboswede; 09-01-2013 at 01:44 PM.
Old 09-01-2013, 01:07 PM
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Stock bottom end keep it under 6500 and it will live for a while with a good tune
Old 09-01-2013, 01:08 PM
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Are you going to put a cam in it?
Old 09-01-2013, 01:43 PM
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Yes I will change the cam, missed it in the text.
Old 09-01-2013, 10:39 PM
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Get a custom cam if u can..it will make a big difference
Old 09-02-2013, 10:19 PM
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rod bolts and a cam.
mine see's 6800 rpm at 20psi, car traps 142+



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