Generation III Internal Engine 1997-2006 LS1 | LS6
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casting #12550592 block

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Old Apr 14, 2006 | 06:54 PM
  #1  
redline2k's Avatar
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Default casting #12550592 block

can this block be bored/honed to 3.905 for forged pistons? tried search with no luck.
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Old Apr 15, 2006 | 06:43 PM
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I don't know about the bore but it is a 97-mid99 LS1 block with the two small rear oil passage holes instead of one large opening as in later blocks.
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Old Sep 17, 2020 | 11:48 PM
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So is the block bad? I just got one that still has the rotating assembly I took the heads off and lots of burned carbon. Can I just put the heads on after a clean and get my car running before my rebuild later?
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Old Sep 18, 2020 | 12:23 AM
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In before G Atsma....
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Old Sep 18, 2020 | 12:29 AM
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Curses.... foiled again.... LOL
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Old Sep 18, 2020 | 08:02 PM
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What?
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Old Sep 18, 2020 | 08:19 PM
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Originally Posted by Angels512
What?
Long story. You responded to a thread from 06’. Not a big deal, but you’ll likely not get an answer from those guys. GAtsma is the official forum Necro post officer. He makes a point to tell folks such as your self, just how old the thread is and how long it’s been since the original posters have been on here. CattleAC was just messing with GAtsma with his post. It’s all just fun and games at that point.
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