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Old Aug 8, 2007 | 04:41 PM
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ok so i came upon a free 4.8l/5.3l motor today. all i want to know is is the block capable of being bored out to a 6.0l or larger. i was thinking the 6 has the same block so it should be fine just has a smaller bore to start.
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Old Aug 8, 2007 | 05:08 PM
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Bored out no, they cant really be bored past 5.7

Not sure if they can be re-sleeved up to a 6.0, but at that cost it would be cheaper to be a 6.0 block.
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Old Aug 8, 2007 | 05:12 PM
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well it was free so at worst i can sell the heads off it and itll make a nice coffee table
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Old Aug 8, 2007 | 07:21 PM
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is the motor complete? wiring and all?
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Old Aug 8, 2007 | 08:41 PM
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Originally Posted by bluenyghthawk
ok so i came upon a free 4.8l/5.3l motor today. all i want to know is is the block capable of being bored out to a 6.0l or larger. i was thinking the 6 has the same block so it should be fine just has a smaller bore to start.
it cannot be bored out to a 6L.
let me know if you want to get rid of it. i need one.
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Old Aug 8, 2007 | 09:13 PM
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lol. i need one to. only would want it though if it had everything.
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Old Aug 8, 2007 | 09:58 PM
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its a long block basically its kinda ruff im gonna tear it down and see what it looks like and ill let yall know
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Old Aug 8, 2007 | 10:02 PM
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what heads are on it.............. you know im still a little slow on this ls1 stuff
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Old Aug 8, 2007 | 10:06 PM
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706 heads the 5.3's theyll bump up your compression that about it
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Old Aug 8, 2007 | 10:29 PM
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706 and 862's came on the 4.8's and 5.3's

the only way you can tell the difference between the two engines is
the 4.8 will have a flattop piston and the 5.3 will be dished.
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Old Aug 9, 2007 | 10:08 AM
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lance you just need the block?
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Old Aug 9, 2007 | 10:11 AM
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yeah just the block
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Old Aug 9, 2007 | 10:18 AM
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k once i get the heads off and clean it off ill give you a call and you can have the block
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Old Aug 9, 2007 | 10:33 AM
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Rob, u the MF'in Man!
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