Any benefit to running 317 heads on 5.3 Turbo?

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11-14-2011, 04:33 PM

streetknight2

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Any benefit to running 317 heads on 5.3 Turbo?

Will they lower the compression ratio too much? I want to do a Turbo 5.3, just a guy offered to give me a set of 317's. Didn't know which heads would be best.

TIA

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11-14-2011, 04:41 PM

eviltwin_1987

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It will drop the compression about a point and make it slow out of boost

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11-14-2011, 05:25 PM

mpatton

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If he's giving em away just take them and sell them for ***** and grins. Or use them. Lol

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11-14-2011, 06:58 PM

BottleFedZ346

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Throw some good springs in them and run em, ALOT of people have great results running 317 heads!

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11-14-2011, 07:09 PM

pwrtrip75

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I ran them.... unless you are restricted to 87 octane I wouldnt run them again. It will be as fast as a cool summer breeze out of boost, and spool slower.

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