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Old Jul 22, 2011 | 04:48 AM
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Question Heads
Would 317 6.0 heads do anything for a 2011 5.3.....I've been out of the game and don't know all the specs on the new 5.3's
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Old Jul 22, 2011 | 10:08 AM
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Originally Posted by chutto
Would 317 6.0 heads do anything for a 2011 5.3.....I've been out of the game and don't know all the specs on the new 5.3's
Compression would drop so bad your torque would feel like you're pulling a loaded car trailer, not to mention gas mileage will drop. I wouldn't do it.
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Old Jul 22, 2011 | 10:09 AM
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They are the same heads with bigger chambers so you would lower your CR and gain nothing.
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Old Jul 22, 2011 | 11:04 AM
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Arent the newer 5.3s rectangular port anyway?
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Old Jul 22, 2011 | 11:54 AM
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Cathedral.
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Old Jul 22, 2011 | 06:04 PM
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Originally Posted by Atomic
Arent the newer 5.3s rectangular port anyway?
No, they are still the the "243" LS6/LS2 head.
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