317s On An LY6...C.R.?

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01-03-2015, 01:01 PM

2JZFC

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317s On An LY6...C.R.?

Does anyone know or is able to calculate the resultant c.r. of a 2010 LY6 with stock 317s heads and LS9 HGs?

TIA.

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01-03-2015, 01:24 PM

Jimbo1367

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what is the chamber size for those head ?

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01-03-2015, 03:28 PM

2JZFC

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317s are listed at 71.06cc.

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01-10-2015, 09:33 AM

casias

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Why would you have 317 heads on an LY6?

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01-10-2015, 06:27 PM

2JZFC

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Already had the 317s with SS valves, double springs, trunion upgrade and a ProFlo. Got the LY6 shortblock to replace an LQ4. It will be turbo'd so not too concerned about a little loss of c.r.

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01-11-2015, 08:03 AM

casias

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Then you can use any number of calculators like this one, to calculate the static compression ratio

http://www.csgnetwork.com/compcalc.html

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