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Ideas on increasing compression on lh6 envoy engine

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Ideas on increasing compression on lh6 envoy engine

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Old

Oct 31, 2018 | 08:23 PM

#1

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Ideas on increasing compression on lh6 envoy engine

I have an 06 envoy Denali with lh6. Is there any way to increase compression to a little over 10 without tearing into the bottom end? Looking for a little more power.

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Oct 31, 2018 | 08:30 PM

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You are at a tit under 10:1 right now. Pull the 243's/799's and mill them then put them back on.

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Oct 31, 2018 | 09:52 PM

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Quote:

Originally Posted by 98CayenneT/A

You are at a tit under 10:1 right now. Pull the 243's/799's and mill them then put them back on.

Yeah, 9.9:1 to be exact. Shouldn't have to do more than a skim to break 10:1...

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Nov 4, 2018 | 12:02 PM

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sixty9fordkiller

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mill 'em!

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Nov 4, 2018 | 12:46 PM

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In such a heavy truck it would not be a very good idea to do that even with winter blends and winter air. Make more torque as is youll be happier. Id suggest the stg 2 high lift cam from texas speed.

Let me know if you are interested

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Nov 13, 2018 | 08:34 PM

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Quote:

Originally Posted by tech@WS6store

In such a heavy truck it would not be a very good idea to do that even with winter blends and winter air. Make more torque as is youll be happier. Id suggest the stg 2 high lift cam from texas speed.

Let me know if you are interested

I was just looking at that cam the other night. Would porting the heads be worth it on this setup?

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Nov 14, 2018 | 10:54 AM

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They will help, but with such a small cam, its not a do or die type of thing.
If you can budget it, then yes.

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