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Generation III Internal Engine 1997-2006 LS1 | LS6
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IRON BLOCK - GEN III vs GEN IV ?

   
Old Oct 28, 2012 | 12:13 PM
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Default IRON BLOCK - GEN III vs GEN IV ?
Forgive a dumb question . . .

What are the differences between the Gen III cast iron block vs. the Gen IV cast iron block ?
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Old Oct 28, 2012 | 05:49 PM
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Sensor locations mainly. Some might say the gen 4 blocks have thicker cylinder walls, but I haven't seen anything backing that up.
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Old Oct 28, 2012 | 06:17 PM
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Originally Posted by bww3588
Sensor locations mainly. Some might say the gen 4 blocks have thicker cylinder walls, but I haven't seen anything backing that up.
That's interesting about the cylinder wall thickness . . . Anyone have more information ?

Thanks !
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