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Generation III Internal Engine 1997-2006 LS1 | LS6
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317 Head questions

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Old 03-16-2009, 10:34 AM
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Default 317 Head questions
# 317 heads off "04" 6L on LS1 5.7L. Any valve to CW issues? Which head gasket to use, 6L or 5.7L?

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Old 03-16-2009, 01:15 PM
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they will bolt on with no clearance problems and you would use the 6.0 head gaskets. you will have a huge drop in compression though.
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Old 03-16-2009, 01:20 PM
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as stated before, your scr and dcr will be lower.
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Old 03-16-2009, 01:33 PM
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I'm thinking MagnCharger W/about 8lbs boost. Getting 9.7lbs on 5.3L now.
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Old 03-16-2009, 01:42 PM
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then the 317s are perfect for you. get some 6.2l head gaskets and it will drop your compression a little more with the added benefit of 5 layer mls.
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