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what compression ratio?

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Old 01-25-2012, 04:23 PM
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Default what compression ratio?
Just wondering whats my compression ratio on my lq4 with some 5.3 l heads milled.10..??? Any info would be great thanks in advance
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Old 01-25-2012, 06:14 PM
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use this calculator

Engine Size and Compression Calculator
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Old 01-25-2012, 06:41 PM
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Thanks
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Old 01-25-2012, 07:27 PM
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On the link where its say chamber in cc?? Thats means combustion chamber on the heads?? Right?? Cuz iam getting 6.27.1 lol
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Old 01-29-2012, 09:22 AM
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Child please...

Estimating a 60cc chamber, you should be around ~10.7:1 CR static.
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Old 01-29-2012, 12:38 PM
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Thanks coban...so 5.3l heads milled .10 its 60cc?? I thought they were 59cc
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Old 02-03-2012, 08:06 PM
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5.3 heads are 61 cc stock so it would be less than that milled.
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Old 02-03-2012, 10:04 PM
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Are you really milling those heads .10 or did you mean .010?
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Old 02-03-2012, 10:20 PM
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The 59cc heads are the ones you get from TSP or WCCH that have been milled and gotten a port job.
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Old 02-05-2012, 11:12 PM
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Ok..this heads were milled .010..thanks guys for the info
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