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ls1 to Lq4 swap question about heads

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Old May 20, 2010 | 06:09 AM
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Default ls1 to Lq4 swap question about heads

How much would I need to mill my LS1 heads before putting them on the lq4 with stock pistons. I want to keep the same compression I had in the LS1? I was told .030 and .010.

thanks,
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Old May 20, 2010 | 09:00 AM
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You could put the LQ9 flat tops in it and not touch the heads and have somewhere in the neighborhood of 10.6:1 with stock LS1 66cc chambers.
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Old May 21, 2010 | 12:12 AM
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Default cheaper

Yeah but here its only 60.00 per pair to mill heads so its cheaper than buying a set of pistons. Unless there is some other benifit.


Originally Posted by rich5368
You could put the LQ9 flat tops in it and not touch the heads and have somewhere in the neighborhood of 10.6:1 with stock LS1 66cc chambers.
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Old May 21, 2010 | 05:16 PM
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Anyone have the answer to this?
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Old May 27, 2010 | 10:41 PM
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anyone?
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Old May 28, 2010 | 04:53 AM
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just asking y u trying to get that comp
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Old May 28, 2010 | 01:00 PM
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Default compression

more compression = more power esp since I wont do too much spraying on the car.

I definately dont want to lose any power from the LS1 I had in the car before especially since im adding 88lbs to the front of the car. Battery going to the back will give back about 8lbs but 80lbs is a LOT to compensate for with power so I am hoping the extra cubes will give more power throughout the powerband.
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