Generation III Internal Engine 1997-2006 LS1 | LS6
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Old 03-08-2006, 01:44 PM
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Originally Posted by just-a-z
I am having the car towed to my house as we speak. I don't have the garage, so I guess I will have to make do with a carport. I'll keep you guys posted

uhh yea, about that.
when i said LS1 swap in my friends garage... i ment in a carport infront of his garage... you cant actually fit a car inside his place... lol.

been there, done that..
Old 03-08-2006, 03:37 PM
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so will I be ok leaving the cam in there or do I have to pull it out and reclean it to get the coolant off?

I have the car at my house now and am restarting to whole process over. I'm sure it will be just as fun as the first time and I will only learn more about my car.
Old 03-08-2006, 04:03 PM
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Originally Posted by 2xLS1
Liquid does not compress.
this is not entirely true.

oil will compress one half percent of its volume.

however, antifreeze will not.
Old 03-08-2006, 04:08 PM
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Originally Posted by s346k
this is not entirely true.

oil will compress one half percent of its volume.

however, antifreeze will not.
Now I have heard this is because of the elastomers (which arent true liquids) and because of aeration in the oil. Otherwise it would be completely uncompressible.
Old 03-08-2006, 05:05 PM
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so I pulled the manifold, pr's and rockers of already and thank God they are ok.

However, both rocker trays snapped in between the first and second rockers. part # 12552203. Is there a reason they both broke?

Is there anything else I have to worry about now?

I am going to go ahead and do it all over again with the bolts and gaskets.

Can I leave the cam in there or do I have to take it out do to the coolant in the oil?
Old 03-08-2006, 05:13 PM
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That is weird that they both broke. I cant imagine the head too flex that much.

Yes, leave the cam in. but change your oil shortly.
Old 03-08-2006, 05:19 PM
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Is that a sign of something else being bad?
Old 03-08-2006, 05:24 PM
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Maybe the vbration could have done it.. who knows, you had a uncommon situation happen, so uncommon parts are gonna have a problem, like teh lifter tray.. Replace them for safety, and they start the whole process, cleaning the bolt holes really good, compressor with a air nozzle and ruber hose works very well for this.. did for me anyway. I'd think about putting ARP studs in , simply because if for some reason you ahve to take it apart again, you won't have ot replace the bolts again, they are reusable.
Old 03-08-2006, 05:31 PM
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I went ahead and ordered the gaskets, bolts and the rocker trays from gmpartsdirect.

12552203 - trays
12498544 - Gaskets *2
12498545 - bolts* 2

Are these the right parts?
Old 03-08-2006, 09:54 PM
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Has anybody else heard of the rockers trays breaking in the same spot on both sides?
Old 03-09-2006, 12:33 AM
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Rocker stands or lifter trays? There is no rocker tray......
Old 03-09-2006, 01:14 AM
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Rocker stands broke huh? That's weird. What kinda of heads are they? If they are ETP's/AFR's/Darts or some other new casting other than stock LS1/LS6 I would ensure the stand is sitting 100% flush on the head. I've heard of problems with some of the heads with the rocker stands. If you have stock ported heads I would check those as well but I doubt they are the problem Weird. Anyways, part numbers for the head bolt kit and rocker stands are correct. Never seen that part number for the heads but GM parts direct says 02-04 vettes which that head would work for you as well so I see no problems there. You'll have her going in no time now.
Old 03-09-2006, 04:04 PM
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rocker stands broke and they are the CNC Darts from TSP. 2.02 1.60 and I am running it with the MS3
Old 03-09-2006, 05:03 PM
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It's a must do to take it apart and do it again. You've got crap all over the gasket surface, antifreeze in the cylinders and oil, oil in the antifreeze and you're wondering if that's OK? Even if it held for a while, how much would you trust it?
Old 03-09-2006, 06:52 PM
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I am down to the heads again and am just waiting for the new gaskets and bolts to come in.

I should hopefully be done in a week or 2
Old 03-09-2006, 06:57 PM
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Get ARP head studs.
Old 03-09-2006, 07:19 PM
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I didnt read but a few post down so i dunno if anyone said this or not but take them back off because you could have gotten coolant into the bolt holes. that will cause a lot of problems.. good luck ...
Old 03-09-2006, 10:39 PM
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I took of the driver side head today and cleaned it off. I will be getting to the other one hopefully tomorrow.

As far as ARP Studs go, I already ordered the stock bolts and have heard that ARP Studs are not a must for my setup.

I will keep you guys posted and keep the advice coming. Thanks a lot
Old 03-09-2006, 11:02 PM
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I'm more or less in agreement with removing the heads and installing new gaskets, but I don't feel the new bolts were necessary. Anyway, good luck!
Old 03-09-2006, 11:43 PM
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I figure I should be 100% sure this time around so I will replace them anyway


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