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any other all bore options?

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Old Jun 14, 2005 | 09:47 AM
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what other combos can be made with the stock crank besides the 383 (4.100)

Thanks,

Tyler
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Old Jun 14, 2005 | 10:32 AM
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Well, a 6.0 block can be bored up to 4.125" and that's kind of pushing it. So, any combo from 4.000" bore up to that. With a 5.7 block, it can only be bored up to about .030 over unless you resleeve it, which doesn't make for much good without an increased stroke as well.
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Old Jun 14, 2005 | 08:23 PM
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On the other hand a resleeved Al block with a 4.135" final bore is a 389" motor for us Pontiac folks . And believe me, an all bore motor will flat haul *** if set up right.
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Old Jun 14, 2005 | 08:32 PM
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Originally Posted by ty_ty13
what other combos can be made with the stock crank besides the 383 (4.100)

Thanks,

Tyler

yes, it would be re-sleeved
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Old Jun 15, 2005 | 05:05 AM
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just curious, but if spending all that money on a resleeved block why stick with the stock crank? Not knocking your plans just wondering. I can think of a couple of reasons, again just curious.

if resleeving the block, you could do a 364ci(4" bore), 370ci(4.030 bore), 375ci(4.060 bore), 383ci(4.100 bore) or a 387ci(4.125 bore)
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Old Jun 15, 2005 | 08:15 AM
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nothing is set in stone yet.. im just looking at some options for a high reving large CI motor
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Old Jun 15, 2005 | 08:19 AM
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Originally Posted by ArcticZ28
Well, a 6.0 block can be bored up to 4.125" and that's kind of pushing it. So, any combo from 4.000" bore up to that. With a 5.7 block, it can only be bored up to about .030 over unless you resleeve it, which doesn't make for much good without an increased stroke as well.
You will never bore a LS1 .030 over (that is SBC talk). .010 is max and needs sonic testing.
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Old Jun 15, 2005 | 08:26 AM
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Originally Posted by ArcticZ28
Well, a 6.0 block can be bored up to 4.125" and that's kind of pushing it. So, any combo from 4.000" bore up to that. With a 5.7 block, it can only be bored up to about .030 over unless you resleeve it, which doesn't make for much good without an increased stroke as well.
Most everyone says to stop at .060 or even .040 on the 6.0 iron block. Never heard .125".

Brandon
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Old Jun 15, 2005 | 10:09 AM
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Well I'm runnning one bored .060 over and someone else on here is running one bored .090 over, I don't remember who though. With a 4.125 you'll definitely need to resleeve.
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