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Will 6.0L heads bolt on LS1?

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Old 12-17-2007, 07:10 PM
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Default Will 6.0L heads bolt on LS1?
Will 6.0L heads bolt on LS1? Are they a viable head swap? I have a chance to get a pair dirt cheap. Just dont know if it would be a decent upgrade.
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Old 12-17-2007, 07:13 PM
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Originally Posted by LS1MUNN
Will 6.0L heads bolt on LS1? Are they a viable head swap? I have a chance to get a pair dirt cheap. Just dont know if it would be a decent upgrade.
Depends if they are 243s or 317s.
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Old 12-17-2007, 07:15 PM
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wich ones will work? 243's or 317's? Is one better than the other? These are 317's
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Old 12-17-2007, 07:24 PM
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Both the 243s and the 317s have similar ports, the difference is that the 243 has a 64cc chamber, while the 317s have a 72cc chamber.
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Old 12-17-2007, 07:30 PM
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So the 317's will just have lower compression than 243's? What size are the stock LS! heads?
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Old 12-17-2007, 08:56 PM
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Correct!

68cc for the 853s, 806s and 241s.
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Old 12-17-2007, 08:59 PM
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If you plan on F/I then get the 317s. If your planning on staying N/A the they wont net you any HP.
Doug
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Old 12-18-2007, 11:43 AM
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Yes, they will bolt up. You want the 72cc 6.0L heads for FI. 317's and 035's are pretty much the same thing.
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