Generation III Internal Engine 1997-2006 LS1 | LS6
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What does this part do?

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Old 06-27-2006, 05:56 PM
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Default What does this part do?

It came from here. (see pics).
Attached Thumbnails What does this part do?-dsc01293.jpg   What does this part do?-dsc01294.jpg  
Old 06-27-2006, 06:06 PM
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looks like a foot or something used to set the block on? did you just pick it up?
Old 06-27-2006, 06:10 PM
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The pics show where it came from. It was left in the LS1 block when it was swapped for the LS6 block. There are electrical issues that won't allow us to start the LS6 block motor. I'm wondering if this plunger couples to a sensor. That may be the reason that the PCM is not allowing the engine to fire.
Old 06-27-2006, 06:14 PM
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it is a oil plug, theres one in front and back, without it there will be no oil pressure
Old 06-27-2006, 06:19 PM
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Originally Posted by 69firebird
it is a oil plug, theres one in front and back, without it there will be no oil pressure

Thanks
Old 06-27-2006, 11:36 PM
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Originally Posted by LS1-450
The pics show where it came from. It was left in the LS1 block when it was swapped for the LS6 block.

Your new block had one right?
Old 06-28-2006, 01:55 AM
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I would hope it did, if you installed the motor without it, you're gonna be in a world of hurt.
Old 06-28-2006, 10:36 AM
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Originally Posted by jay_99z
Your new block had one right?

I'm trying to find out. The LS1 block actually has a pressed in plug in the front oil galley opening & had this restrictor/plug in the rear. Does an LS6 have a pressed in plug in the front & a restrictor in the rear also or are both ends plugged, or both ends restrictors?

The good news is that we have been tracking down an electrical problem that has kept the engine from starting. It will turn over, but, won't fire. So, the pump is moving oil w/very little pressure & the engine has not been running.

Unless the company that sold me the block can confirm the oil gallery plug/restrictor, we're gonna have to tear the engine down & look.
Old 06-28-2006, 11:21 AM
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They are the same setup as the LS1 block. You can check the the rear without tearing down the engine. There is a allen head plug at an angle to the restrictor. Pop that out and use a rod, screwdriver, etc. to check for it. If the restrictor is in you will hit it and it won't go in more than an inch or so. If not.....it will go in the whole way. Use the old block as a reference.
Old 06-28-2006, 11:29 AM
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Originally Posted by jay_99z
They are the same setup as the LS1 block. You can check the the rear without tearing down the engine. There is a allen head plug at an angle to the restrictor. Pop that out and use a rod, screwdriver, etc. to check for it. If the restrictor is in you will hit it and it won't go in more than an inch or so. If not.....it will go in the whole way. Use the old block as a reference.
Wow! Thanks, that will save a lot of time. Do we need to check the front or is it plugged as the LS1 is?
Old 06-28-2006, 12:12 PM
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Front is plugged but I don't think it will be there on a new block. The person you bought the block from would have had to install it. I'm not sure if you can see it if you remove the allen head plug near there. Again...I'd use your old block to check that. Worst case you'll have to remove the front cover.
Old 06-28-2006, 04:00 PM
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It redirects the oil into the oil filter.
Old 06-28-2006, 08:12 PM
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Thanks all for the extremely helpful posts. The company that sold me the block says that the front plug is installed & the rear barbell or restrictor was not installed. Although our electrical problem remains, it saved the block from disaster. Thank-you again & I'm hoping to have her running soon.




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